20856375

素因数分解:

$3^2\times 5^3\times {\mathrm{18539}}^1$

素因数の和:18560

約数の個数: 24

約数和(自身を含む): 37599120

約数和(自身を除く): 16742745

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 1125, 18539, 55617, 92695, 166851, 278085, 463475, 834255, 1390425, 2317375, 4171275, 6952125, 20856375]

約数ペア:

[(1, 20856375), (3, 6952125), (5, 4171275), (9, 2317375), (15, 1390425), (25, 834255), (45, 463475), (75, 278085), (125, 166851), (225, 92695), (375, 55617), (1125, 18539)]