18872018

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{8017}}^1$

素因数の和:8137

約数の個数: 16

約数和(自身を含む): 31173984

約数和(自身を除く): 12301966

約数列:

[1, 2, 11, 22, 107, 214, 1177, 2354, 8017, 16034, 88187, 176374, 857819, 1715638, 9436009, 18872018]

約数ペア:

[(1, 18872018), (2, 9436009), (11, 1715638), (22, 857819), (107, 176374), (214, 88187), (1177, 16034), (2354, 8017)]