138836187

素因数分解:

$3^4\times 7^1\times {\mathrm{244861}}^1$

素因数の和:244880

約数の個数: 20

約数和(自身を含む): 237026416

約数和(自身を除く): 98190229

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 244861, 734583, 1714027, 2203749, 5142081, 6611247, 15426243, 19833741, 46278729, 138836187]

約数ペア:

[(1, 138836187), (3, 46278729), (7, 19833741), (9, 15426243), (21, 6611247), (27, 5142081), (63, 2203749), (81, 1714027), (189, 734583), (567, 244861)]