20439892

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{4111}}^1$

素因数の和:4239

約数の個数: 24

約数和(自身を含む): 39376512

約数和(自身を除く): 18936620

約数列:

[1, 2, 4, 11, 22, 44, 113, 226, 452, 1243, 2486, 4111, 4972, 8222, 16444, 45221, 90442, 180884, 464543, 929086, 1858172, 5109973, 10219946, 20439892]

約数ペア:

[(1, 20439892), (2, 10219946), (4, 5109973), (11, 1858172), (22, 929086), (44, 464543), (113, 180884), (226, 90442), (452, 45221), (1243, 16444), (2486, 8222), (4111, 4972)]