21139906

素因数分解:

$2^1\times {\mathrm{101}}^1\times {\mathrm{229}}^1\times {\mathrm{457}}^1$

素因数の和:789

約数の個数: 16

約数和(自身を含む): 32234040

約数和(自身を除く): 11094134

約数列:

[1, 2, 101, 202, 229, 457, 458, 914, 23129, 46157, 46258, 92314, 104653, 209306, 10569953, 21139906]

約数ペア:

[(1, 21139906), (2, 10569953), (101, 209306), (202, 104653), (229, 92314), (457, 46258), (458, 46157), (914, 23129)]