20215214908

素因数分解:

$2^2\times 7^1\times {\mathrm{721971961}}^1$

素因数の和:721971972

約数の個数: 12

約数和(自身を含む): 40430429872

約数和(自身を除く): 20215214964

約数列:

[1, 2, 4, 7, 14, 28, 721971961, 1443943922, 2887887844, 5053803727, 10107607454, 20215214908]

約数ペア:

[(1, 20215214908), (2, 10107607454), (4, 5053803727), (7, 2887887844), (14, 1443943922), (28, 721971961)]