21950875

素因数分解:

$5^3\times {\mathrm{67}}^1\times {\mathrm{2621}}^1$

素因数の和:2703

約数の個数: 16

約数和(自身を含む): 27814176

約数和(自身を除く): 5863301

約数列:

[1, 5, 25, 67, 125, 335, 1675, 2621, 8375, 13105, 65525, 175607, 327625, 878035, 4390175, 21950875]

約数ペア:

[(1, 21950875), (5, 4390175), (25, 878035), (67, 327625), (125, 175607), (335, 65525), (1675, 13105), (2621, 8375)]