21194460

素因数分解:

$2^2\times 3^5\times 5^1\times 7^2\times {\mathrm{89}}^1$

素因数の和:127

約数の個数: 216

約数和(自身を含む): 78427440

約数和(自身を除く): 57232980

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 81, 84, 89, 90, 98, 105, 108, 126, 135, 140, 147, 162, 178, 180, 189, 196, 210, 243, 245, 252, 267, 270, 294, 315, 324, 356, 378, 405, 420, 441, 445, 486, 490, 534, 540, 567, 588, 623, 630, 735, 756, 801, 810, 882, 890, 945, 972, 980, 1068, 1134, 1215, 1246, 1260, 1323, 1335, 1470, 1602, 1620, 1701, 1764, 1780, 1869, 1890, 2205, 2268, 2403, 2430, 2492, 2646, 2670, 2835, 2940, 3115, 3204, 3402, 3738, 3780, 3969, 4005, 4361, 4410, 4806, 4860, 5292, 5340, 5607, 5670, 6230, 6615, 6804, 7209, 7476, 7938, 8010, 8505, 8722, 8820, 9345, 9612, 11214, 11340, 11907, 12015, 12460, 13083, 13230, 14418, 15876, 16020, 16821, 17010, 17444, 18690, 19845, 21627, 21805, 22428, 23814, 24030, 26166, 26460, 28035, 28836, 33642, 34020, 36045, 37380, 39249, 39690, 43254, 43610, 47628, 48060, 50463, 52332, 56070, 59535, 65415, 67284, 72090, 78498, 79380, 84105, 86508, 87220, 100926, 108135, 112140, 117747, 119070, 130830, 144180, 151389, 156996, 168210, 196245, 201852, 216270, 235494, 238140, 252315, 261660, 302778, 336420, 353241, 392490, 432540, 470988, 504630, 588735, 605556, 706482, 756945, 784980, 1009260, 1059723, 1177470, 1412964, 1513890, 1766205, 2119446, 2354940, 3027780, 3532410, 4238892, 5298615, 7064820, 10597230, 21194460]

約数ペア:

[(1, 21194460), (2, 10597230), (3, 7064820), (4, 5298615), (5, 4238892), (6, 3532410), (7, 3027780), (9, 2354940), (10, 2119446), (12, 1766205), (14, 1513890), (15, 1412964), (18, 1177470), (20, 1059723), (21, 1009260), (27, 784980), (28, 756945), (30, 706482), (35, 605556), (36, 588735), (42, 504630), (45, 470988), (49, 432540), (54, 392490), (60, 353241), (63, 336420), (70, 302778), (81, 261660), (84, 252315), (89, 238140), (90, 235494), (98, 216270), (105, 201852), (108, 196245), (126, 168210), (135, 156996), (140, 151389), (147, 144180), (162, 130830), (178, 119070), (180, 117747), (189, 112140), (196, 108135), (210, 100926), (243, 87220), (245, 86508), (252, 84105), (267, 79380), (270, 78498), (294, 72090), (315, 67284), (324, 65415), (356, 59535), (378, 56070), (405, 52332), (420, 50463), (441, 48060), (445, 47628), (486, 43610), (490, 43254), (534, 39690), (540, 39249), (567, 37380), (588, 36045), (623, 34020), (630, 33642), (735, 28836), (756, 28035), (801, 26460), (810, 26166), (882, 24030), (890, 23814), (945, 22428), (972, 21805), (980, 21627), (1068, 19845), (1134, 18690), (1215, 17444), (1246, 17010), (1260, 16821), (1323, 16020), (1335, 15876), (1470, 14418), (1602, 13230), (1620, 13083), (1701, 12460), (1764, 12015), (1780, 11907), (1869, 11340), (1890, 11214), (2205, 9612), (2268, 9345), (2403, 8820), (2430, 8722), (2492, 8505), (2646, 8010), (2670, 7938), (2835, 7476), (2940, 7209), (3115, 6804), (3204, 6615), (3402, 6230), (3738, 5670), (3780, 5607), (3969, 5340), (4005, 5292), (4361, 4860), (4410, 4806)]