19912150

素因数分解:

$2^1\times 5^2\times {\mathrm{101}}^1\times {\mathrm{3943}}^1$

素因数の和:4056

約数の個数: 24

約数和(自身を含む): 37412784

約数和(自身を除く): 17500634

約数列:

[1, 2, 5, 10, 25, 50, 101, 202, 505, 1010, 2525, 3943, 5050, 7886, 19715, 39430, 98575, 197150, 398243, 796486, 1991215, 3982430, 9956075, 19912150]

約数ペア:

[(1, 19912150), (2, 9956075), (5, 3982430), (10, 1991215), (25, 796486), (50, 398243), (101, 197150), (202, 98575), (505, 39430), (1010, 19715), (2525, 7886), (3943, 5050)]