31378509

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{16843}}^1$

素因数の和:16878

約数の個数: 20

約数和(自身を含む): 48914976

約数和(自身を除く): 17536467

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 16843, 50529, 151587, 387389, 454761, 1162167, 1364283, 3486501, 10459503, 31378509]

約数ペア:

[(1, 31378509), (3, 10459503), (9, 3486501), (23, 1364283), (27, 1162167), (69, 454761), (81, 387389), (207, 151587), (621, 50529), (1863, 16843)]