207420213

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{239}}^1$

素因数の和:307

約数の個数: 96

約数和(自身を含む): 396103680

約数和(自身を除く): 188683467

約数列:

[1, 3, 7, 11, 13, 17, 21, 33, 39, 51, 77, 91, 119, 143, 187, 221, 231, 239, 273, 289, 357, 429, 561, 663, 717, 867, 1001, 1309, 1547, 1673, 2023, 2431, 2629, 3003, 3107, 3179, 3757, 3927, 4063, 4641, 5019, 6069, 7293, 7887, 9321, 9537, 11271, 12189, 17017, 18403, 21749, 22253, 26299, 28441, 34177, 41327, 44693, 51051, 52819, 55209, 65247, 66759, 69071, 78897, 85323, 102531, 123981, 134079, 158457, 207213, 239239, 289289, 312851, 369733, 483497, 581009, 717717, 759781, 867867, 897923, 938553, 1109199, 1450491, 1743027, 2279343, 2693769, 4067063, 5318467, 6285461, 9877153, 12201189, 15955401, 18856383, 29631459, 69140071, 207420213]

約数ペア:

[(1, 207420213), (3, 69140071), (7, 29631459), (11, 18856383), (13, 15955401), (17, 12201189), (21, 9877153), (33, 6285461), (39, 5318467), (51, 4067063), (77, 2693769), (91, 2279343), (119, 1743027), (143, 1450491), (187, 1109199), (221, 938553), (231, 897923), (239, 867867), (273, 759781), (289, 717717), (357, 581009), (429, 483497), (561, 369733), (663, 312851), (717, 289289), (867, 239239), (1001, 207213), (1309, 158457), (1547, 134079), (1673, 123981), (2023, 102531), (2431, 85323), (2629, 78897), (3003, 69071), (3107, 66759), (3179, 65247), (3757, 55209), (3927, 52819), (4063, 51051), (4641, 44693), (5019, 41327), (6069, 34177), (7293, 28441), (7887, 26299), (9321, 22253), (9537, 21749), (11271, 18403), (12189, 17017)]