18486974

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{27107}}^1$

素因数の和:27151

約数の個数: 16

約数和(自身を含む): 31228416

約数和(自身を除く): 12741442

約数列:

[1, 2, 11, 22, 31, 62, 341, 682, 27107, 54214, 298177, 596354, 840317, 1680634, 9243487, 18486974]

約数ペア:

[(1, 18486974), (2, 9243487), (11, 1680634), (22, 840317), (31, 596354), (62, 298177), (341, 54214), (682, 27107)]