205386867

素因数分解:

$3^3\times 7^1\times {\mathrm{1086703}}^1$

素因数の和:1086719

約数の個数: 16

約数和(自身を含む): 347745280

約数和(自身を除く): 142358413

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 1086703, 3260109, 7606921, 9780327, 22820763, 29340981, 68462289, 205386867]

約数ペア:

[(1, 205386867), (3, 68462289), (7, 29340981), (9, 22820763), (21, 9780327), (27, 7606921), (63, 3260109), (189, 1086703)]