16959925

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1$

素因数の和:345

約数の個数: 24

約数和(自身を含む): 22041000

約数和(自身を除く): 5081075

約数列:

[1, 5, 25, 29, 145, 149, 157, 725, 745, 785, 3725, 3925, 4321, 4553, 21605, 22765, 23393, 108025, 113825, 116965, 584825, 678397, 3391985, 16959925]

約数ペア:

[(1, 16959925), (5, 3391985), (25, 678397), (29, 584825), (145, 116965), (149, 113825), (157, 108025), (725, 23393), (745, 22765), (785, 21605), (3725, 4553), (3925, 4321)]