18865743

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{2131}}^1$

素因数の和:2374

約数の個数: 16

約数和(自身を含む): 27221376

約数和(自身を除く): 8355633

約数列:

[1, 3, 13, 39, 227, 681, 2131, 2951, 6393, 8853, 27703, 83109, 483737, 1451211, 6288581, 18865743]

約数ペア:

[(1, 18865743), (3, 6288581), (13, 1451211), (39, 483737), (227, 83109), (681, 27703), (2131, 8853), (2951, 6393)]