21705115

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{233}}^1\times {\mathrm{601}}^1$

素因数の和:870

約数の個数: 16

約数和(自身を含む): 27046656

約数和(自身を除く): 5341541

約数列:

[1, 5, 31, 155, 233, 601, 1165, 3005, 7223, 18631, 36115, 93155, 140033, 700165, 4341023, 21705115]

約数ペア:

[(1, 21705115), (5, 4341023), (31, 700165), (155, 140033), (233, 93155), (601, 36115), (1165, 18631), (3005, 7223)]