21105595

素因数分解:

$5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{3061}}^1$

素因数の和:3270

約数の個数: 16

約数和(自身を含む): 29101248

約数和(自身を除く): 7995653

約数列:

[1, 5, 7, 35, 197, 985, 1379, 3061, 6895, 15305, 21427, 107135, 603017, 3015085, 4221119, 21105595]

約数ペア:

[(1, 21105595), (5, 4221119), (7, 3015085), (35, 603017), (197, 107135), (985, 21427), (1379, 15305), (3061, 6895)]