20510775

素因数分解:

$3^2\times 5^2\times {\mathrm{91159}}^1$

素因数の和:91175

約数の個数: 18

約数和(自身を含む): 36737480

約数和(自身を除く): 16226705

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 91159, 273477, 455795, 820431, 1367385, 2278975, 4102155, 6836925, 20510775]

約数ペア:

[(1, 20510775), (3, 6836925), (5, 4102155), (9, 2278975), (15, 1367385), (25, 820431), (45, 455795), (75, 273477), (225, 91159)]