20166978

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{258551}}^1$

素因数の和:258569

約数の個数: 16

約数和(自身を含む): 43436736

約数和(自身を除く): 23269758

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 258551, 517102, 775653, 1551306, 3361163, 6722326, 10083489, 20166978]

約数ペア:

[(1, 20166978), (2, 10083489), (3, 6722326), (6, 3361163), (13, 1551306), (26, 775653), (39, 517102), (78, 258551)]