19912705

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{719}}^1$

素因数の和:944

約数の個数: 16

約数和(自身を含む): 24883200

約数和(自身を除く): 4970495

約数列:

[1, 5, 29, 145, 191, 719, 955, 3595, 5539, 20851, 27695, 104255, 137329, 686645, 3982541, 19912705]

約数ペア:

[(1, 19912705), (5, 3982541), (29, 686645), (145, 137329), (191, 104255), (719, 27695), (955, 20851), (3595, 5539)]