21070023

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{13177}}^1$

素因数の和:13234

約数の個数: 16

約数和(自身を含む): 30994656

約数和(自身を除く): 9924633

約数列:

[1, 3, 13, 39, 41, 123, 533, 1599, 13177, 39531, 171301, 513903, 540257, 1620771, 7023341, 21070023]

約数ペア:

[(1, 21070023), (3, 7023341), (13, 1620771), (39, 540257), (41, 513903), (123, 171301), (533, 39531), (1599, 13177)]