21675875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{13339}}^1$

素因数の和:13367

約数の個数: 16

約数和(自身を含む): 29134560

約数和(自身を除く): 7458685

約数列:

[1, 5, 13, 25, 65, 125, 325, 1625, 13339, 66695, 173407, 333475, 867035, 1667375, 4335175, 21675875]

約数ペア:

[(1, 21675875), (5, 4335175), (13, 1667375), (25, 867035), (65, 333475), (125, 173407), (325, 66695), (1625, 13339)]