18964864

素因数分解:

$2^7\times {\mathrm{229}}^1\times {\mathrm{647}}^1$

素因数の和:890

約数の個数: 32

約数和(自身を含む): 38005200

約数和(自身を除く): 19040336

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 229, 458, 647, 916, 1294, 1832, 2588, 3664, 5176, 7328, 10352, 14656, 20704, 29312, 41408, 82816, 148163, 296326, 592652, 1185304, 2370608, 4741216, 9482432, 18964864]

約数ペア:

[(1, 18964864), (2, 9482432), (4, 4741216), (8, 2370608), (16, 1185304), (32, 592652), (64, 296326), (128, 148163), (229, 82816), (458, 41408), (647, 29312), (916, 20704), (1294, 14656), (1832, 10352), (2588, 7328), (3664, 5176)]