21152487

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1\times {\mathrm{599}}^1$

素因数の和:830

約数の個数: 16

約数和(自身を含む): 28800000

約数和(自身を除く): 7647513

約数列:

[1, 3, 79, 149, 237, 447, 599, 1797, 11771, 35313, 47321, 89251, 141963, 267753, 7050829, 21152487]

約数ペア:

[(1, 21152487), (3, 7050829), (79, 267753), (149, 141963), (237, 89251), (447, 47321), (599, 35313), (1797, 11771)]