18815272

素因数分解:

$2^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{4253}}^1$

素因数の和:4345

約数の個数: 32

約数和(自身を含む): 40838400

約数和(自身を除く): 22023128

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 79, 158, 316, 553, 632, 1106, 2212, 4253, 4424, 8506, 17012, 29771, 34024, 59542, 119084, 238168, 335987, 671974, 1343948, 2351909, 2687896, 4703818, 9407636, 18815272]

約数ペア:

[(1, 18815272), (2, 9407636), (4, 4703818), (7, 2687896), (8, 2351909), (14, 1343948), (28, 671974), (56, 335987), (79, 238168), (158, 119084), (316, 59542), (553, 34024), (632, 29771), (1106, 17012), (2212, 8506), (4253, 4424)]