21080553

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{41579}}^1$

素因数の和:41608

約数の個数: 12

約数和(自身を含む): 30436560

約数和(自身を除く): 9356007

約数列:

[1, 3, 13, 39, 169, 507, 41579, 124737, 540527, 1621581, 7026851, 21080553]

約数ペア:

[(1, 21080553), (3, 7026851), (13, 1621581), (39, 540527), (169, 124737), (507, 41579)]