21637125

素因数分解:

$3^4\times 5^3\times {\mathrm{2137}}^1$

素因数の和:2164

約数の個数: 40

約数和(自身を含む): 40356888

約数和(自身を除く): 18719763

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 125, 135, 225, 375, 405, 675, 1125, 2025, 2137, 3375, 6411, 10125, 10685, 19233, 32055, 53425, 57699, 96165, 160275, 173097, 267125, 288495, 480825, 801375, 865485, 1442475, 2404125, 4327425, 7212375, 21637125]

約数ペア:

[(1, 21637125), (3, 7212375), (5, 4327425), (9, 2404125), (15, 1442475), (25, 865485), (27, 801375), (45, 480825), (75, 288495), (81, 267125), (125, 173097), (135, 160275), (225, 96165), (375, 57699), (405, 53425), (675, 32055), (1125, 19233), (2025, 10685), (2137, 10125), (3375, 6411)]