20737187121

素因数分解:

$3^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{2414389}}^1$

素因数の和:2414808

約数の個数: 16

約数和(自身を含む): 31676796800

約数和(自身を除く): 10939609679

約数列:

[1, 3, 7, 21, 409, 1227, 2863, 8589, 2414389, 7243167, 16900723, 50702169, 987485101, 2962455303, 6912395707, 20737187121]

約数ペア:

[(1, 20737187121), (3, 6912395707), (7, 2962455303), (21, 987485101), (409, 50702169), (1227, 16900723), (2863, 7243167), (8589, 2414389)]