20737875

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{3253}}^1$

素因数の和:3288

約数の個数: 32

約数和(自身を含む): 36548928

約数和(自身を除く): 15811053

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 125, 255, 375, 425, 1275, 2125, 3253, 6375, 9759, 16265, 48795, 55301, 81325, 165903, 243975, 276505, 406625, 829515, 1219875, 1382525, 4147575, 6912625, 20737875]

約数ペア:

[(1, 20737875), (3, 6912625), (5, 4147575), (15, 1382525), (17, 1219875), (25, 829515), (51, 406625), (75, 276505), (85, 243975), (125, 165903), (255, 81325), (375, 55301), (425, 48795), (1275, 16265), (2125, 9759), (3253, 6375)]