21852180

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:116

約数の個数: 240

約数和(自身を含む): 81962496

約数和(自身を除く): 60110316

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 41, 42, 45, 47, 54, 60, 63, 70, 81, 82, 84, 90, 94, 105, 108, 123, 126, 135, 140, 141, 162, 164, 180, 188, 189, 205, 210, 235, 246, 252, 270, 282, 287, 315, 324, 329, 369, 378, 405, 410, 420, 423, 470, 492, 540, 564, 567, 574, 615, 630, 658, 705, 738, 756, 810, 820, 846, 861, 940, 945, 987, 1107, 1134, 1148, 1230, 1260, 1269, 1316, 1410, 1435, 1476, 1620, 1645, 1692, 1722, 1845, 1890, 1927, 1974, 2115, 2214, 2268, 2460, 2538, 2583, 2820, 2835, 2870, 2961, 3290, 3321, 3444, 3690, 3780, 3807, 3854, 3948, 4230, 4305, 4428, 4935, 5076, 5166, 5535, 5670, 5740, 5781, 5922, 6345, 6580, 6642, 7380, 7614, 7708, 7749, 8460, 8610, 8883, 9635, 9870, 10332, 11070, 11340, 11562, 11844, 12690, 12915, 13284, 13489, 14805, 15228, 15498, 16605, 17220, 17343, 17766, 19035, 19270, 19740, 22140, 23124, 23247, 25380, 25830, 26649, 26978, 28905, 29610, 30996, 33210, 34686, 35532, 38070, 38540, 38745, 40467, 44415, 46494, 51660, 52029, 53298, 53956, 57810, 59220, 66420, 67445, 69372, 76140, 77490, 80934, 86715, 88830, 92988, 104058, 106596, 115620, 116235, 121401, 133245, 134890, 154980, 156087, 161868, 173430, 177660, 202335, 208116, 232470, 242802, 260145, 266490, 269780, 312174, 346860, 364203, 404670, 464940, 485604, 520290, 532980, 607005, 624348, 728406, 780435, 809340, 1040580, 1092609, 1214010, 1456812, 1560870, 1821015, 2185218, 2428020, 3121740, 3642030, 4370436, 5463045, 7284060, 10926090, 21852180]

約数ペア:

[(1, 21852180), (2, 10926090), (3, 7284060), (4, 5463045), (5, 4370436), (6, 3642030), (7, 3121740), (9, 2428020), (10, 2185218), (12, 1821015), (14, 1560870), (15, 1456812), (18, 1214010), (20, 1092609), (21, 1040580), (27, 809340), (28, 780435), (30, 728406), (35, 624348), (36, 607005), (41, 532980), (42, 520290), (45, 485604), (47, 464940), (54, 404670), (60, 364203), (63, 346860), (70, 312174), (81, 269780), (82, 266490), (84, 260145), (90, 242802), (94, 232470), (105, 208116), (108, 202335), (123, 177660), (126, 173430), (135, 161868), (140, 156087), (141, 154980), (162, 134890), (164, 133245), (180, 121401), (188, 116235), (189, 115620), (205, 106596), (210, 104058), (235, 92988), (246, 88830), (252, 86715), (270, 80934), (282, 77490), (287, 76140), (315, 69372), (324, 67445), (329, 66420), (369, 59220), (378, 57810), (405, 53956), (410, 53298), (420, 52029), (423, 51660), (470, 46494), (492, 44415), (540, 40467), (564, 38745), (567, 38540), (574, 38070), (615, 35532), (630, 34686), (658, 33210), (705, 30996), (738, 29610), (756, 28905), (810, 26978), (820, 26649), (846, 25830), (861, 25380), (940, 23247), (945, 23124), (987, 22140), (1107, 19740), (1134, 19270), (1148, 19035), (1230, 17766), (1260, 17343), (1269, 17220), (1316, 16605), (1410, 15498), (1435, 15228), (1476, 14805), (1620, 13489), (1645, 13284), (1692, 12915), (1722, 12690), (1845, 11844), (1890, 11562), (1927, 11340), (1974, 11070), (2115, 10332), (2214, 9870), (2268, 9635), (2460, 8883), (2538, 8610), (2583, 8460), (2820, 7749), (2835, 7708), (2870, 7614), (2961, 7380), (3290, 6642), (3321, 6580), (3444, 6345), (3690, 5922), (3780, 5781), (3807, 5740), (3854, 5670), (3948, 5535), (4230, 5166), (4305, 5076), (4428, 4935)]