20972830

素因数分解:

$2^1\times 5^1\times {\mathrm{571}}^1\times {\mathrm{3673}}^1$

素因数の和:4251

約数の個数: 16

約数和(自身を含む): 37827504

約数和(自身を除く): 16854674

約数列:

[1, 2, 5, 10, 571, 1142, 2855, 3673, 5710, 7346, 18365, 36730, 2097283, 4194566, 10486415, 20972830]

約数ペア:

[(1, 20972830), (2, 10486415), (5, 4194566), (10, 2097283), (571, 36730), (1142, 18365), (2855, 7346), (3673, 5710)]