18691792

素因数分解:

$2^4\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1063}}^1$

素因数の和:1235

約数の個数: 40

約数和(自身を含む): 41691776

約数和(自身を除く): 22999984

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 157, 314, 628, 1063, 1099, 1256, 2126, 2198, 2512, 4252, 4396, 7441, 8504, 8792, 14882, 17008, 17584, 29764, 59528, 119056, 166891, 333782, 667564, 1168237, 1335128, 2336474, 2670256, 4672948, 9345896, 18691792]

約数ペア:

[(1, 18691792), (2, 9345896), (4, 4672948), (7, 2670256), (8, 2336474), (14, 1335128), (16, 1168237), (28, 667564), (56, 333782), (112, 166891), (157, 119056), (314, 59528), (628, 29764), (1063, 17584), (1099, 17008), (1256, 14882), (2126, 8792), (2198, 8504), (2512, 7441), (4252, 4396)]