28191387

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{16993}}^1$

素因数の和:17082

約数の個数: 16

約数和(自身を含む): 43504640

約数和(自身を除く): 15313253

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 16993, 50979, 118951, 356853, 1342447, 4027341, 9397129, 28191387]

約数ペア:

[(1, 28191387), (3, 9397129), (7, 4027341), (21, 1342447), (79, 356853), (237, 118951), (553, 50979), (1659, 16993)]