20904507

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{59557}}^1$

素因数の和:59579

約数の個数: 16

約数和(自身を含む): 33352480

約数和(自身を除く): 12447973

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 59557, 178671, 536013, 774241, 1608039, 2322723, 6968169, 20904507]

約数ペア:

[(1, 20904507), (3, 6968169), (9, 2322723), (13, 1608039), (27, 774241), (39, 536013), (117, 178671), (351, 59557)]