18246872

素因数分解:

$2^3\times 7^1\times {\mathrm{163}}^1\times {\mathrm{1999}}^1$

素因数の和:2175

約数の個数: 32

約数和(自身を含む): 39360000

約数和(自身を除く): 21113128

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 163, 326, 652, 1141, 1304, 1999, 2282, 3998, 4564, 7996, 9128, 13993, 15992, 27986, 55972, 111944, 325837, 651674, 1303348, 2280859, 2606696, 4561718, 9123436, 18246872]

約数ペア:

[(1, 18246872), (2, 9123436), (4, 4561718), (7, 2606696), (8, 2280859), (14, 1303348), (28, 651674), (56, 325837), (163, 111944), (326, 55972), (652, 27986), (1141, 15992), (1304, 13993), (1999, 9128), (2282, 7996), (3998, 4564)]