20533875

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{3221}}^1$

素因数の和:3256

約数の個数: 32

約数和(自身を含む): 36189504

約数和(自身を除く): 15655629

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 125, 255, 375, 425, 1275, 2125, 3221, 6375, 9663, 16105, 48315, 54757, 80525, 164271, 241575, 273785, 402625, 821355, 1207875, 1368925, 4106775, 6844625, 20533875]

約数ペア:

[(1, 20533875), (3, 6844625), (5, 4106775), (15, 1368925), (17, 1207875), (25, 821355), (51, 402625), (75, 273785), (85, 241575), (125, 164271), (255, 80525), (375, 54757), (425, 48315), (1275, 16105), (2125, 9663), (3221, 6375)]