81510919

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{8581}}^1$

素因数の和:8670

約数の個数: 16

約数和(自身を含む): 98864640

約数和(自身を除く): 17353721

約数列:

[1, 7, 23, 59, 161, 413, 1357, 8581, 9499, 60067, 197363, 506279, 1381541, 3543953, 11644417, 81510919]

約数ペア:

[(1, 81510919), (7, 11644417), (23, 3543953), (59, 1381541), (161, 506279), (413, 197363), (1357, 60067), (8581, 9499)]