889339905

素因数分解:

$3^6\times 5^1\times {\mathrm{243989}}^1$

素因数の和:244012

約数の個数: 28

約数和(自身を含む): 1600086420

約数和(自身を除く): 710746515

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 243989, 731967, 1219945, 2195901, 3659835, 6587703, 10979505, 19763109, 32938515, 59289327, 98815545, 177867981, 296446635, 889339905]

約数ペア:

[(1, 889339905), (3, 296446635), (5, 177867981), (9, 98815545), (15, 59289327), (27, 32938515), (45, 19763109), (81, 10979505), (135, 6587703), (243, 3659835), (405, 2195901), (729, 1219945), (1215, 731967), (3645, 243989)]