71888817

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{647}}^1$

素因数の和:718

約数の個数: 64

約数和(自身を含む): 132378624

約数和(自身を除く): 60489807

約数列:

[1, 3, 7, 11, 13, 21, 33, 37, 39, 77, 91, 111, 143, 231, 259, 273, 407, 429, 481, 647, 777, 1001, 1221, 1443, 1941, 2849, 3003, 3367, 4529, 5291, 7117, 8411, 8547, 10101, 13587, 15873, 21351, 23939, 25233, 37037, 49819, 58877, 71817, 92521, 111111, 149457, 167573, 176631, 263329, 277563, 311207, 502719, 647647, 789987, 933621, 1843303, 1942941, 2178449, 3423277, 5529909, 6535347, 10269831, 23962939, 71888817]

約数ペア:

[(1, 71888817), (3, 23962939), (7, 10269831), (11, 6535347), (13, 5529909), (21, 3423277), (33, 2178449), (37, 1942941), (39, 1843303), (77, 933621), (91, 789987), (111, 647647), (143, 502719), (231, 311207), (259, 277563), (273, 263329), (407, 176631), (429, 167573), (481, 149457), (647, 111111), (777, 92521), (1001, 71817), (1221, 58877), (1443, 49819), (1941, 37037), (2849, 25233), (3003, 23939), (3367, 21351), (4529, 15873), (5291, 13587), (7117, 10101), (8411, 8547)]