21030768

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1$

素因数の和:124

約数の個数: 180

約数和(自身を含む): 69464304

約数和(自身を除く): 48433536

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 17, 18, 22, 24, 33, 34, 36, 44, 48, 51, 66, 68, 71, 72, 88, 99, 102, 121, 132, 136, 142, 144, 153, 176, 187, 198, 204, 213, 242, 264, 272, 284, 306, 363, 374, 396, 408, 426, 484, 528, 561, 568, 612, 639, 726, 748, 781, 792, 816, 852, 968, 1089, 1122, 1136, 1207, 1224, 1278, 1452, 1496, 1562, 1584, 1683, 1704, 1936, 2057, 2178, 2244, 2343, 2414, 2448, 2556, 2904, 2992, 3124, 3366, 3408, 3621, 4114, 4356, 4488, 4686, 4828, 5112, 5808, 6171, 6248, 6732, 7029, 7242, 8228, 8591, 8712, 8976, 9372, 9656, 10224, 10863, 12342, 12496, 13277, 13464, 14058, 14484, 16456, 17182, 17424, 18513, 18744, 19312, 21726, 24684, 25773, 26554, 26928, 28116, 28968, 32912, 34364, 37026, 37488, 39831, 43452, 49368, 51546, 53108, 56232, 57936, 68728, 74052, 77319, 79662, 86904, 98736, 103092, 106216, 112464, 119493, 137456, 146047, 148104, 154638, 159324, 173808, 206184, 212432, 238986, 292094, 296208, 309276, 318648, 412368, 438141, 477972, 584188, 618552, 637296, 876282, 955944, 1168376, 1237104, 1314423, 1752564, 1911888, 2336752, 2628846, 3505128, 5257692, 7010256, 10515384, 21030768]

約数ペア:

[(1, 21030768), (2, 10515384), (3, 7010256), (4, 5257692), (6, 3505128), (8, 2628846), (9, 2336752), (11, 1911888), (12, 1752564), (16, 1314423), (17, 1237104), (18, 1168376), (22, 955944), (24, 876282), (33, 637296), (34, 618552), (36, 584188), (44, 477972), (48, 438141), (51, 412368), (66, 318648), (68, 309276), (71, 296208), (72, 292094), (88, 238986), (99, 212432), (102, 206184), (121, 173808), (132, 159324), (136, 154638), (142, 148104), (144, 146047), (153, 137456), (176, 119493), (187, 112464), (198, 106216), (204, 103092), (213, 98736), (242, 86904), (264, 79662), (272, 77319), (284, 74052), (306, 68728), (363, 57936), (374, 56232), (396, 53108), (408, 51546), (426, 49368), (484, 43452), (528, 39831), (561, 37488), (568, 37026), (612, 34364), (639, 32912), (726, 28968), (748, 28116), (781, 26928), (792, 26554), (816, 25773), (852, 24684), (968, 21726), (1089, 19312), (1122, 18744), (1136, 18513), (1207, 17424), (1224, 17182), (1278, 16456), (1452, 14484), (1496, 14058), (1562, 13464), (1584, 13277), (1683, 12496), (1704, 12342), (1936, 10863), (2057, 10224), (2178, 9656), (2244, 9372), (2343, 8976), (2414, 8712), (2448, 8591), (2556, 8228), (2904, 7242), (2992, 7029), (3124, 6732), (3366, 6248), (3408, 6171), (3621, 5808), (4114, 5112), (4356, 4828), (4488, 4686)]