18559912

素因数分解:

$2^3\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2111}}^1$

素因数の和:2281

約数の個数: 32

約数和(自身を含む): 40043520

約数和(自身を除く): 21483608

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 157, 314, 628, 1099, 1256, 2111, 2198, 4222, 4396, 8444, 8792, 14777, 16888, 29554, 59108, 118216, 331427, 662854, 1325708, 2319989, 2651416, 4639978, 9279956, 18559912]

約数ペア:

[(1, 18559912), (2, 9279956), (4, 4639978), (7, 2651416), (8, 2319989), (14, 1325708), (28, 662854), (56, 331427), (157, 118216), (314, 59108), (628, 29554), (1099, 16888), (1256, 14777), (2111, 8792), (2198, 8444), (4222, 4396)]