21405035

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{701}}^1$

素因数の和:934

約数の個数: 16

約数和(自身を含む): 26687232

約数和(自身を除く): 5282197

約数列:

[1, 5, 31, 155, 197, 701, 985, 3505, 6107, 21731, 30535, 108655, 138097, 690485, 4281007, 21405035]

約数ペア:

[(1, 21405035), (5, 4281007), (31, 690485), (155, 138097), (197, 108655), (701, 30535), (985, 21731), (3505, 6107)]