18939609

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{53959}}^1$

素因数の和:53981

約数の個数: 16

約数和(自身を含む): 30217600

約数和(自身を除く): 11277991

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 53959, 161877, 485631, 701467, 1456893, 2104401, 6313203, 18939609]

約数ペア:

[(1, 18939609), (3, 6313203), (9, 2104401), (13, 1456893), (27, 701467), (39, 485631), (117, 161877), (351, 53959)]