20445885

素因数分解:

$3^3\times 5^1\times {\mathrm{151451}}^1$

素因数の和:151465

約数の個数: 16

約数和(自身を含む): 36348480

約数和(自身を除く): 15902595

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 151451, 454353, 757255, 1363059, 2271765, 4089177, 6815295, 20445885]

約数ペア:

[(1, 20445885), (3, 6815295), (5, 4089177), (9, 2271765), (15, 1363059), (27, 757255), (45, 454353), (135, 151451)]