18865226

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1\times {\mathrm{647}}^1$

素因数の和:949

約数の個数: 16

約数和(自身を含む): 28926720

約数和(自身を除く): 10061494

約数列:

[1, 2, 61, 122, 239, 478, 647, 1294, 14579, 29158, 39467, 78934, 154633, 309266, 9432613, 18865226]

約数ペア:

[(1, 18865226), (2, 9432613), (61, 309266), (122, 154633), (239, 78934), (478, 39467), (647, 29158), (1294, 14579)]