20418918

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^3\times {\mathrm{1549}}^1$

素因数の和:1593

約数の個数: 32

約数和(自身を含む): 44268000

約数和(自身を除く): 23849082

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 169, 338, 507, 1014, 1549, 2197, 3098, 4394, 4647, 6591, 9294, 13182, 20137, 40274, 60411, 120822, 261781, 523562, 785343, 1570686, 3403153, 6806306, 10209459, 20418918]

約数ペア:

[(1, 20418918), (2, 10209459), (3, 6806306), (6, 3403153), (13, 1570686), (26, 785343), (39, 523562), (78, 261781), (169, 120822), (338, 60411), (507, 40274), (1014, 20137), (1549, 13182), (2197, 9294), (3098, 6591), (4394, 4647)]