21605875

素因数分解:

$5^3\times {\mathrm{127}}^1\times {\mathrm{1361}}^1$

素因数の和:1503

約数の個数: 16

約数和(自身を含む): 27196416

約数和(自身を除く): 5590541

約数列:

[1, 5, 25, 125, 127, 635, 1361, 3175, 6805, 15875, 34025, 170125, 172847, 864235, 4321175, 21605875]

約数ペア:

[(1, 21605875), (5, 4321175), (25, 864235), (125, 172847), (127, 170125), (635, 34025), (1361, 15875), (3175, 6805)]