19897725

素因数分解:

$3^1\times 5^2\times {\mathrm{127}}^1\times {\mathrm{2089}}^1$

素因数の和:2229

約数の個数: 24

約数和(自身を含む): 33172480

約数和(自身を除く): 13274755

約数列:

[1, 3, 5, 15, 25, 75, 127, 381, 635, 1905, 2089, 3175, 6267, 9525, 10445, 31335, 52225, 156675, 265303, 795909, 1326515, 3979545, 6632575, 19897725]

約数ペア:

[(1, 19897725), (3, 6632575), (5, 3979545), (15, 1326515), (25, 795909), (75, 265303), (127, 156675), (381, 52225), (635, 31335), (1905, 10445), (2089, 9525), (3175, 6267)]