20901021

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1\times {\mathrm{677}}^1$

素因数の和:972

約数の個数: 16

約数和(自身を含む): 28703808

約数和(自身を除く): 7802787

約数列:

[1, 3, 41, 123, 251, 677, 753, 2031, 10291, 27757, 30873, 83271, 169927, 509781, 6967007, 20901021]

約数ペア:

[(1, 20901021), (3, 6967007), (41, 509781), (123, 169927), (251, 83271), (677, 30873), (753, 27757), (2031, 10291)]