68721309

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{173}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 110747520

約数和(自身を除く): 42026211

約数列:

[1, 3, 9, 19, 23, 57, 69, 101, 171, 173, 207, 303, 437, 519, 909, 1311, 1557, 1919, 2323, 3287, 3933, 3979, 5757, 6969, 9861, 11937, 17271, 17473, 20907, 29583, 35811, 44137, 52419, 75601, 132411, 157257, 226803, 331987, 397233, 401879, 680409, 995961, 1205637, 2987883, 3616911, 7635701, 22907103, 68721309]

約数ペア:

[(1, 68721309), (3, 22907103), (9, 7635701), (19, 3616911), (23, 2987883), (57, 1205637), (69, 995961), (101, 680409), (171, 401879), (173, 397233), (207, 331987), (303, 226803), (437, 157257), (519, 132411), (909, 75601), (1311, 52419), (1557, 44137), (1919, 35811), (2323, 29583), (3287, 20907), (3933, 17473), (3979, 17271), (5757, 11937), (6969, 9861)]