18948995

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{7879}}^1$

素因数の和:7934

約数の個数: 16

約数和(自身を含む): 25152960

約数和(自身を除く): 6203965

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 7879, 39395, 102427, 291523, 512135, 1457615, 3789799, 18948995]

約数ペア:

[(1, 18948995), (5, 3789799), (13, 1457615), (37, 512135), (65, 291523), (185, 102427), (481, 39395), (2405, 7879)]