21127045

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{613}}^1$

素因数の和:792

約数の個数: 16

約数和(自身を含む): 26038512

約数和(自身を除く): 4911467

約数列:

[1, 5, 61, 113, 305, 565, 613, 3065, 6893, 34465, 37393, 69269, 186965, 346345, 4225409, 21127045]

約数ペア:

[(1, 21127045), (5, 4225409), (61, 346345), (113, 186965), (305, 69269), (565, 37393), (613, 34465), (3065, 6893)]