18926721

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{5167}}^1$

素因数の和:5221

約数の個数: 24

約数和(自身を含む): 30635904

約数和(自身を除く): 11709183

約数列:

[1, 3, 9, 11, 33, 37, 99, 111, 333, 407, 1221, 3663, 5167, 15501, 46503, 56837, 170511, 191179, 511533, 573537, 1720611, 2102969, 6308907, 18926721]

約数ペア:

[(1, 18926721), (3, 6308907), (9, 2102969), (11, 1720611), (33, 573537), (37, 511533), (99, 191179), (111, 170511), (333, 56837), (407, 46503), (1221, 15501), (3663, 5167)]