21397701

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{2417}}^1$

素因数の和:2660

約数の個数: 16

約数和(自身を含む): 30873024

約数和(自身を除く): 9475323

約数列:

[1, 3, 13, 39, 227, 681, 2417, 2951, 7251, 8853, 31421, 94263, 548659, 1645977, 7132567, 21397701]

約数ペア:

[(1, 21397701), (3, 7132567), (13, 1645977), (39, 548659), (227, 94263), (681, 31421), (2417, 8853), (2951, 7251)]