21068530

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:144

約数の個数: 96

約数和(自身を含む): 48591360

約数和(自身を除く): 27522830

約数列:

[1, 2, 5, 7, 10, 14, 19, 31, 35, 38, 49, 62, 70, 73, 95, 98, 133, 146, 155, 190, 217, 245, 266, 310, 365, 434, 490, 511, 589, 665, 730, 931, 1022, 1085, 1178, 1330, 1387, 1519, 1862, 2170, 2263, 2555, 2774, 2945, 3038, 3577, 4123, 4526, 4655, 5110, 5890, 6935, 7154, 7595, 8246, 9310, 9709, 11315, 13870, 15190, 15841, 17885, 19418, 20615, 22630, 28861, 31682, 35770, 41230, 42997, 48545, 57722, 67963, 79205, 85994, 97090, 110887, 135926, 144305, 158410, 214985, 221774, 288610, 300979, 339815, 429970, 554435, 601958, 679630, 1108870, 1504895, 2106853, 3009790, 4213706, 10534265, 21068530]

約数ペア:

[(1, 21068530), (2, 10534265), (5, 4213706), (7, 3009790), (10, 2106853), (14, 1504895), (19, 1108870), (31, 679630), (35, 601958), (38, 554435), (49, 429970), (62, 339815), (70, 300979), (73, 288610), (95, 221774), (98, 214985), (133, 158410), (146, 144305), (155, 135926), (190, 110887), (217, 97090), (245, 85994), (266, 79205), (310, 67963), (365, 57722), (434, 48545), (490, 42997), (511, 41230), (589, 35770), (665, 31682), (730, 28861), (931, 22630), (1022, 20615), (1085, 19418), (1178, 17885), (1330, 15841), (1387, 15190), (1519, 13870), (1862, 11315), (2170, 9709), (2263, 9310), (2555, 8246), (2774, 7595), (2945, 7154), (3038, 6935), (3577, 5890), (4123, 5110), (4526, 4655)]