20118996821

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{552401}}^1$

素因数の和:552473

約数の個数: 24

約数和(自身を含む): 25861252032

約数和(自身を除く): 5742255211

約数列:

[1, 7, 11, 43, 77, 121, 301, 473, 847, 3311, 5203, 36421, 552401, 3866807, 6076411, 23753243, 42534877, 66840521, 166272701, 261285673, 467883647, 1828999711, 2874142403, 20118996821]

約数ペア:

[(1, 20118996821), (7, 2874142403), (11, 1828999711), (43, 467883647), (77, 261285673), (121, 166272701), (301, 66840521), (473, 42534877), (847, 23753243), (3311, 6076411), (5203, 3866807), (36421, 552401)]