20743875

素因数分解:

$3^2\times 5^3\times {\mathrm{18439}}^1$

素因数の和:18460

約数の個数: 24

約数和(自身を含む): 37396320

約数和(自身を除く): 16652445

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 1125, 18439, 55317, 92195, 165951, 276585, 460975, 829755, 1382925, 2304875, 4148775, 6914625, 20743875]

約数ペア:

[(1, 20743875), (3, 6914625), (5, 4148775), (9, 2304875), (15, 1382925), (25, 829755), (45, 460975), (75, 276585), (125, 165951), (225, 92195), (375, 55317), (1125, 18439)]