21848687

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{2503}}^1$

素因数の和:2582

約数の個数: 16

約数和(自身を含む): 26442240

約数和(自身を除く): 4593553

約数列:

[1, 7, 29, 43, 203, 301, 1247, 2503, 8729, 17521, 72587, 107629, 508109, 753403, 3121241, 21848687]

約数ペア:

[(1, 21848687), (7, 3121241), (29, 753403), (43, 508109), (203, 107629), (301, 72587), (1247, 17521), (2503, 8729)]