21310479

素因数分解:

$3^3\times {\mathrm{151}}^1\times {\mathrm{5227}}^1$

素因数の和:5387

約数の個数: 16

約数和(自身を含む): 31786240

約数和(自身を除く): 10475761

約数列:

[1, 3, 9, 27, 151, 453, 1359, 4077, 5227, 15681, 47043, 141129, 789277, 2367831, 7103493, 21310479]

約数ペア:

[(1, 21310479), (3, 7103493), (9, 2367831), (27, 789277), (151, 141129), (453, 47043), (1359, 15681), (4077, 5227)]