18671679

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{5503}}^1$

素因数の和:5551

約数の個数: 24

約数和(自身を含む): 30051840

約数和(自身を除く): 11380161

約数列:

[1, 3, 9, 13, 29, 39, 87, 117, 261, 377, 1131, 3393, 5503, 16509, 49527, 71539, 159587, 214617, 478761, 643851, 1436283, 2074631, 6223893, 18671679]

約数ペア:

[(1, 18671679), (3, 6223893), (9, 2074631), (13, 1436283), (29, 643851), (39, 478761), (87, 214617), (117, 159587), (261, 71539), (377, 49527), (1131, 16509), (3393, 5503)]