13221628

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{7741}}^1$

素因数の和:7813

約数の個数: 24

約数和(自身を含む): 26880224

約数和(自身を除く): 13658596

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 7741, 15482, 30964, 54187, 108374, 216748, 472201, 944402, 1888804, 3305407, 6610814, 13221628]

約数ペア:

[(1, 13221628), (2, 6610814), (4, 3305407), (7, 1888804), (14, 944402), (28, 472201), (61, 216748), (122, 108374), (244, 54187), (427, 30964), (854, 15482), (1708, 7741)]