478791

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{257}}^1$

素因数の和:292

約数の個数: 20

約数和(自身を含む): 749232

約数和(自身を除く): 270441

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 257, 621, 771, 1863, 2313, 5911, 6939, 17733, 20817, 53199, 159597, 478791]

約数ペア:

[(1, 478791), (3, 159597), (9, 53199), (23, 20817), (27, 17733), (69, 6939), (81, 5911), (207, 2313), (257, 1863), (621, 771)]