21158228

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1571}}^1$

素因数の和:1632

約数の個数: 48

約数和(自身を含む): 46833024

約数和(自身を除く): 25674796

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 37, 52, 74, 91, 148, 182, 259, 364, 481, 518, 962, 1036, 1571, 1924, 3142, 3367, 6284, 6734, 10997, 13468, 20423, 21994, 40846, 43988, 58127, 81692, 116254, 142961, 232508, 285922, 406889, 571844, 755651, 813778, 1511302, 1627556, 3022604, 5289557, 10579114, 21158228]

約数ペア:

[(1, 21158228), (2, 10579114), (4, 5289557), (7, 3022604), (13, 1627556), (14, 1511302), (26, 813778), (28, 755651), (37, 571844), (52, 406889), (74, 285922), (91, 232508), (148, 142961), (182, 116254), (259, 81692), (364, 58127), (481, 43988), (518, 40846), (962, 21994), (1036, 20423), (1571, 13468), (1924, 10997), (3142, 6734), (3367, 6284)]