20413497

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{647}}^1\times {\mathrm{809}}^1$

素因数の和:1472

約数の個数: 16

約数和(自身を含む): 29393280

約数和(自身を除く): 8979783

約数列:

[1, 3, 13, 39, 647, 809, 1941, 2427, 8411, 10517, 25233, 31551, 523423, 1570269, 6804499, 20413497]

約数ペア:

[(1, 20413497), (3, 6804499), (13, 1570269), (39, 523423), (647, 31551), (809, 25233), (1941, 10517), (2427, 8411)]