21891567285

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{7369}}^1\times {\mathrm{9431}}^1$

素因数の和:16818

約数の個数: 48

約数和(自身を含む): 43376636160

約数和(自身を除く): 21485068875

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 7369, 9431, 22107, 28293, 36845, 47155, 51583, 66017, 66321, 84879, 110535, 141465, 154749, 198051, 257915, 330085, 331605, 424395, 464247, 594153, 773745, 990255, 2321235, 2970765, 69497039, 208491117, 347485195, 486479273, 625473351, 1042455585, 1459437819, 2432396365, 3127366755, 4378313457, 7297189095, 21891567285]

約数ペア:

[(1, 21891567285), (3, 7297189095), (5, 4378313457), (7, 3127366755), (9, 2432396365), (15, 1459437819), (21, 1042455585), (35, 625473351), (45, 486479273), (63, 347485195), (105, 208491117), (315, 69497039), (7369, 2970765), (9431, 2321235), (22107, 990255), (28293, 773745), (36845, 594153), (47155, 464247), (51583, 424395), (66017, 331605), (66321, 330085), (84879, 257915), (110535, 198051), (141465, 154749)]