21430186

素因数分解:

$2^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1\times {\mathrm{491}}^1$

素因数の和:789

約数の個数: 16

約数和(自身を含む): 32649120

約数和(自身を除く): 11218934

約数列:

[1, 2, 139, 157, 278, 314, 491, 982, 21823, 43646, 68249, 77087, 136498, 154174, 10715093, 21430186]

約数ペア:

[(1, 21430186), (2, 10715093), (139, 154174), (157, 136498), (278, 77087), (314, 68249), (491, 43646), (982, 21823)]