18684211

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 24514560

約数和(自身を除く): 5830349

約数列:

[1, 7, 13, 23, 79, 91, 113, 161, 299, 553, 791, 1027, 1469, 1817, 2093, 2599, 7189, 8927, 10283, 12719, 18193, 23621, 33787, 62489, 116051, 165347, 205321, 236509, 812357, 1437247, 2669173, 18684211]

約数ペア:

[(1, 18684211), (7, 2669173), (13, 1437247), (23, 812357), (79, 236509), (91, 205321), (113, 165347), (161, 116051), (299, 62489), (553, 33787), (791, 23621), (1027, 18193), (1469, 12719), (1817, 10283), (2093, 8927), (2599, 7189)]