21290973

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{677}}^1\times {\mathrm{953}}^1$

素因数の和:1644

約数の個数: 16

約数和(自身を含む): 31046976

約数和(自身を除く): 9756003

約数列:

[1, 3, 11, 33, 677, 953, 2031, 2859, 7447, 10483, 22341, 31449, 645181, 1935543, 7096991, 21290973]

約数ペア:

[(1, 21290973), (3, 7096991), (11, 1935543), (33, 645181), (677, 31449), (953, 22341), (2031, 10483), (2859, 7447)]