21719347

素因数分解:

${\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{1087}}^1$

素因数の和:1182

約数の個数: 16

約数和(自身を含む): 24675840

約数和(自身を除く): 2956493

約数列:

[1, 13, 29, 53, 377, 689, 1087, 1537, 14131, 19981, 31523, 57611, 409799, 748943, 1670719, 21719347]

約数ペア:

[(1, 21719347), (13, 1670719), (29, 748943), (53, 409799), (377, 57611), (689, 31523), (1087, 19981), (1537, 14131)]