20913609

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1\times {\mathrm{727}}^1$

素因数の和:996

約数の個数: 16

約数和(自身を含む): 28700672

約数和(自身を除く): 7787063

約数列:

[1, 3, 43, 129, 223, 669, 727, 2181, 9589, 28767, 31261, 93783, 162121, 486363, 6971203, 20913609]

約数ペア:

[(1, 20913609), (3, 6971203), (43, 486363), (129, 162121), (223, 93783), (669, 31261), (727, 28767), (2181, 9589)]