20520279

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1381}}^1$

素因数の和:1527

約数の個数: 24

約数和(自身を含む): 32195072

約数和(自身を除く): 11674793

約数列:

[1, 3, 9, 13, 39, 117, 127, 381, 1143, 1381, 1651, 4143, 4953, 12429, 14859, 17953, 53859, 161577, 175387, 526161, 1578483, 2280031, 6840093, 20520279]

約数ペア:

[(1, 20520279), (3, 6840093), (9, 2280031), (13, 1578483), (39, 526161), (117, 175387), (127, 161577), (381, 53859), (1143, 17953), (1381, 14859), (1651, 12429), (4143, 4953)]