21960825

素因数分解:

$3^1\times 5^2\times {\mathrm{349}}^1\times {\mathrm{839}}^1$

素因数の和:1201

約数の個数: 24

約数和(自身を含む): 36456000

約数和(自身を除く): 14495175

約数列:

[1, 3, 5, 15, 25, 75, 349, 839, 1047, 1745, 2517, 4195, 5235, 8725, 12585, 20975, 26175, 62925, 292811, 878433, 1464055, 4392165, 7320275, 21960825]

約数ペア:

[(1, 21960825), (3, 7320275), (5, 4392165), (15, 1464055), (25, 878433), (75, 292811), (349, 62925), (839, 26175), (1047, 20975), (1745, 12585), (2517, 8725), (4195, 5235)]