20680053

素因数分解:

$3^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1\times {\mathrm{521}}^1$

素因数の和:756

約数の個数: 16

約数和(自身を含む): 28112832

約数和(自身を除く): 7432779

約数列:

[1, 3, 101, 131, 303, 393, 521, 1563, 13231, 39693, 52621, 68251, 157863, 204753, 6893351, 20680053]

約数ペア:

[(1, 20680053), (3, 6893351), (101, 204753), (131, 157863), (303, 68251), (393, 52621), (521, 39693), (1563, 13231)]