20870509

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{479}}^1$

素因数の和:740

約数の個数: 16

約数和(自身を含む): 24261120

約数和(自身を除く): 3390611

約数列:

[1, 11, 17, 187, 233, 479, 2563, 3961, 5269, 8143, 43571, 89573, 111607, 1227677, 1897319, 20870509]

約数ペア:

[(1, 20870509), (11, 1897319), (17, 1227677), (187, 111607), (233, 89573), (479, 43571), (2563, 8143), (3961, 5269)]