138880413

素因数分解:

$3^4\times 7^1\times {\mathrm{244939}}^1$

素因数の和:244958

約数の個数: 20

約数和(自身を含む): 237101920

約数和(自身を除く): 98221507

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 244939, 734817, 1714573, 2204451, 5143719, 6613353, 15431157, 19840059, 46293471, 138880413]

約数ペア:

[(1, 138880413), (3, 46293471), (7, 19840059), (9, 15431157), (21, 6613353), (27, 5143719), (63, 2204451), (81, 1714573), (189, 734817), (567, 244939)]