20383816

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{2111}}^1$

素因数の和:2205

約数の個数: 32

約数和(自身を含む): 41057280

約数和(自身を除く): 20673464

約数列:

[1, 2, 4, 8, 17, 34, 68, 71, 136, 142, 284, 568, 1207, 2111, 2414, 4222, 4828, 8444, 9656, 16888, 35887, 71774, 143548, 149881, 287096, 299762, 599524, 1199048, 2547977, 5095954, 10191908, 20383816]

約数ペア:

[(1, 20383816), (2, 10191908), (4, 5095954), (8, 2547977), (17, 1199048), (34, 599524), (68, 299762), (71, 287096), (136, 149881), (142, 143548), (284, 71774), (568, 35887), (1207, 16888), (2111, 9656), (2414, 8444), (4222, 4828)]