21702655

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{17573}}^1$

素因数の和:17610

約数の個数: 16

約数和(自身を含む): 29524320

約数和(自身を除く): 7821665

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 17573, 87865, 228449, 333887, 1142245, 1669435, 4340531, 21702655]

約数ペア:

[(1, 21702655), (5, 4340531), (13, 1669435), (19, 1142245), (65, 333887), (95, 228449), (247, 87865), (1235, 17573)]