18466778

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{137}}^1\times {\mathrm{557}}^1$

素因数の和:718

約数の個数: 24

約数和(自身を含む): 30724596

約数和(自身を除く): 12257818

約数列:

[1, 2, 11, 22, 121, 137, 242, 274, 557, 1114, 1507, 3014, 6127, 12254, 16577, 33154, 67397, 76309, 134794, 152618, 839399, 1678798, 9233389, 18466778]

約数ペア:

[(1, 18466778), (2, 9233389), (11, 1678798), (22, 839399), (121, 152618), (137, 134794), (242, 76309), (274, 67397), (557, 33154), (1114, 16577), (1507, 12254), (3014, 6127)]