18640089

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{509}}^1$

素因数の和:841

約数の個数: 24

約数和(自身を含む): 29145480

約数和(自身を除く): 10505391

約数列:

[1, 3, 9, 13, 39, 117, 313, 509, 939, 1527, 2817, 4069, 4581, 6617, 12207, 19851, 36621, 59553, 159317, 477951, 1433853, 2071121, 6213363, 18640089]

約数ペア:

[(1, 18640089), (3, 6213363), (9, 2071121), (13, 1433853), (39, 477951), (117, 159317), (313, 59553), (509, 36621), (939, 19851), (1527, 12207), (2817, 6617), (4069, 4581)]