20120643

素因数分解:

$3^5\times {\mathrm{31}}^1\times {\mathrm{2671}}^1$

素因数の和:2717

約数の個数: 24

約数和(自身を含む): 31123456

約数和(自身を除く): 11002813

約数列:

[1, 3, 9, 27, 31, 81, 93, 243, 279, 837, 2511, 2671, 7533, 8013, 24039, 72117, 82801, 216351, 248403, 649053, 745209, 2235627, 6706881, 20120643]

約数ペア:

[(1, 20120643), (3, 6706881), (9, 2235627), (27, 745209), (31, 649053), (81, 248403), (93, 216351), (243, 82801), (279, 72117), (837, 24039), (2511, 8013), (2671, 7533)]