18370235

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{691}}^1$

素因数の和:1118

約数の個数: 16

約数和(自身を含む): 23832480

約数和(自身を除く): 5462245

約数列:

[1, 5, 13, 65, 409, 691, 2045, 3455, 5317, 8983, 26585, 44915, 282619, 1413095, 3674047, 18370235]

約数ペア:

[(1, 18370235), (5, 3674047), (13, 1413095), (65, 282619), (409, 44915), (691, 26585), (2045, 8983), (3455, 5317)]