18319565

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{839}}^1$

素因数の和:1252

約数の個数: 16

約数和(自身を含む): 24071040

約数和(自身を除く): 5751475

約数列:

[1, 5, 11, 55, 397, 839, 1985, 4195, 4367, 9229, 21835, 46145, 333083, 1665415, 3663913, 18319565]

約数ペア:

[(1, 18319565), (5, 3663913), (11, 1665415), (55, 333083), (397, 46145), (839, 21835), (1985, 9229), (4195, 4367)]