270621

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{257}}^1$

素因数の和:282

約数の個数: 20

約数和(自身を含む): 437052

約数和(自身を除く): 166431

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 257, 351, 771, 1053, 2313, 3341, 6939, 10023, 20817, 30069, 90207, 270621]

約数ペア:

[(1, 270621), (3, 90207), (9, 30069), (13, 20817), (27, 10023), (39, 6939), (81, 3341), (117, 2313), (257, 1053), (351, 771)]