21536557

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{1433}}^1$

素因数の和:1572

約数の個数: 16

約数和(自身を含む): 26156160

約数和(自身を除く): 4619603

約数列:

[1, 7, 19, 113, 133, 791, 1433, 2147, 10031, 15029, 27227, 161929, 190589, 1133503, 3076651, 21536557]

約数ペア:

[(1, 21536557), (7, 3076651), (19, 1133503), (113, 190589), (133, 161929), (791, 27227), (1433, 15029), (2147, 10031)]