21075837

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{1543}}^1$

素因数の和:1732

約数の個数: 16

約数和(自身を含む): 29274240

約数和(自身を除く): 8198403

約数列:

[1, 3, 29, 87, 157, 471, 1543, 4553, 4629, 13659, 44747, 134241, 242251, 726753, 7025279, 21075837]

約数ペア:

[(1, 21075837), (3, 7025279), (29, 726753), (87, 242251), (157, 134241), (471, 44747), (1543, 13659), (4553, 4629)]