18415804

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{53}}^2\times {\mathrm{149}}^1$

素因数の和:270

約数の個数: 36

約数和(自身を含む): 36073800

約数和(自身を除く): 17657996

約数列:

[1, 2, 4, 11, 22, 44, 53, 106, 149, 212, 298, 583, 596, 1166, 1639, 2332, 2809, 3278, 5618, 6556, 7897, 11236, 15794, 30899, 31588, 61798, 86867, 123596, 173734, 347468, 418541, 837082, 1674164, 4603951, 9207902, 18415804]

約数ペア:

[(1, 18415804), (2, 9207902), (4, 4603951), (11, 1674164), (22, 837082), (44, 418541), (53, 347468), (106, 173734), (149, 123596), (212, 86867), (298, 61798), (583, 31588), (596, 30899), (1166, 15794), (1639, 11236), (2332, 7897), (2809, 6556), (3278, 5618)]