2021939227

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{1277}}^1\times {\mathrm{20563}}^1$

素因数の和:21858

約数の個数: 16

約数和(自身を含む): 2522956032

約数和(自身を除く): 501016805

約数列:

[1, 7, 11, 77, 1277, 8939, 14047, 20563, 98329, 143941, 226193, 1583351, 26258951, 183812657, 288848461, 2021939227]

約数ペア:

[(1, 2021939227), (7, 288848461), (11, 183812657), (77, 26258951), (1277, 1583351), (8939, 226193), (14047, 143941), (20563, 98329)]