21423721

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{239}}^1\times {\mathrm{281}}^1$

素因数の和:560

約数の個数: 16

約数和(自身を含む): 24364800

約数和(自身を除く): 2941079

約数列:

[1, 11, 29, 239, 281, 319, 2629, 3091, 6931, 8149, 67159, 76241, 89639, 738749, 1947611, 21423721]

約数ペア:

[(1, 21423721), (11, 1947611), (29, 738749), (239, 89639), (281, 76241), (319, 67159), (2629, 8149), (3091, 6931)]