21936915

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1$

素因数の和:529

約数の個数: 96

約数和(自身を含む): 51158016

約数和(自身を除く): 29221101

約数列:

[1, 3, 5, 7, 9, 11, 13, 15, 21, 33, 35, 39, 45, 55, 63, 65, 77, 91, 99, 105, 117, 143, 165, 195, 231, 273, 315, 385, 429, 455, 487, 495, 585, 693, 715, 819, 1001, 1155, 1287, 1365, 1461, 2145, 2435, 3003, 3409, 3465, 4095, 4383, 5005, 5357, 6331, 6435, 7305, 9009, 10227, 15015, 16071, 17045, 18993, 21915, 26785, 30681, 31655, 37499, 44317, 45045, 48213, 51135, 56979, 69641, 80355, 94965, 112497, 132951, 153405, 187495, 208923, 221585, 241065, 284895, 337491, 348205, 398853, 487487, 562485, 626769, 664755, 1044615, 1462461, 1687455, 1994265, 2437435, 3133845, 4387383, 7312305, 21936915]

約数ペア:

[(1, 21936915), (3, 7312305), (5, 4387383), (7, 3133845), (9, 2437435), (11, 1994265), (13, 1687455), (15, 1462461), (21, 1044615), (33, 664755), (35, 626769), (39, 562485), (45, 487487), (55, 398853), (63, 348205), (65, 337491), (77, 284895), (91, 241065), (99, 221585), (105, 208923), (117, 187495), (143, 153405), (165, 132951), (195, 112497), (231, 94965), (273, 80355), (315, 69641), (385, 56979), (429, 51135), (455, 48213), (487, 45045), (495, 44317), (585, 37499), (693, 31655), (715, 30681), (819, 26785), (1001, 21915), (1155, 18993), (1287, 17045), (1365, 16071), (1461, 15015), (2145, 10227), (2435, 9009), (3003, 7305), (3409, 6435), (3465, 6331), (4095, 5357), (4383, 5005)]