20178834

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{258703}}^1$

素因数の和:258721

約数の個数: 16

約数和(自身を含む): 43462272

約数和(自身を除く): 23283438

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 258703, 517406, 776109, 1552218, 3363139, 6726278, 10089417, 20178834]

約数ペア:

[(1, 20178834), (2, 10089417), (3, 6726278), (6, 3363139), (13, 1552218), (26, 776109), (39, 517406), (78, 258703)]