64901817

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{25847}}^1$

素因数の和:25890

約数の個数: 20

約数和(自身を含む): 100083456

約数和(自身を除く): 35181639

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 25847, 77541, 232623, 697869, 801257, 2093607, 2403771, 7211313, 21633939, 64901817]

約数ペア:

[(1, 64901817), (3, 21633939), (9, 7211313), (27, 2403771), (31, 2093607), (81, 801257), (93, 697869), (279, 232623), (837, 77541), (2511, 25847)]