21613963

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{997}}^1$

素因数の和:1186

約数の個数: 16

約数和(自身を含む): 26187520

約数和(自身を除く): 4573557

約数列:

[1, 7, 19, 133, 163, 997, 1141, 3097, 6979, 18943, 21679, 132601, 162511, 1137577, 3087709, 21613963]

約数ペア:

[(1, 21613963), (7, 3087709), (19, 1137577), (133, 162511), (163, 132601), (997, 21679), (1141, 18943), (3097, 6979)]