81471742

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{17551}}^1$

素因数の和:17775

約数の個数: 16

約数和(自身を含む): 133956864

約数和(自身を除く): 52485122

約数列:

[1, 2, 11, 22, 211, 422, 2321, 4642, 17551, 35102, 193061, 386122, 3703261, 7406522, 40735871, 81471742]

約数ペア:

[(1, 81471742), (2, 40735871), (11, 7406522), (22, 3703261), (211, 386122), (422, 193061), (2321, 35102), (4642, 17551)]