64710981

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{25771}}^1$

素因数の和:25814

約数の個数: 20

約数和(自身を含む): 99789184

約数和(自身を除く): 35078203

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 25771, 77313, 231939, 695817, 798901, 2087451, 2396703, 7190109, 21570327, 64710981]

約数ペア:

[(1, 64710981), (3, 21570327), (9, 7190109), (27, 2396703), (31, 2087451), (81, 798901), (93, 695817), (279, 231939), (837, 77313), (2511, 25771)]