19904171

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{599}}^1$

素因数の和:754

約数の個数: 16

約数和(自身を含む): 23500800

約数和(自身を除く): 3596629

約数列:

[1, 7, 47, 101, 329, 599, 707, 4193, 4747, 28153, 33229, 60499, 197071, 423493, 2843453, 19904171]

約数ペア:

[(1, 19904171), (7, 2843453), (47, 423493), (101, 197071), (329, 60499), (599, 33229), (707, 28153), (4193, 4747)]