21336228

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{191}}^1$

素因数の和:337

約数の個数: 72

約数和(自身を含む): 56609280

約数和(自身を除く): 35273052

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 107, 116, 174, 191, 214, 261, 321, 348, 382, 428, 522, 573, 642, 764, 963, 1044, 1146, 1284, 1719, 1926, 2292, 3103, 3438, 3852, 5539, 6206, 6876, 9309, 11078, 12412, 16617, 18618, 20437, 22156, 27927, 33234, 37236, 40874, 49851, 55854, 61311, 66468, 81748, 99702, 111708, 122622, 183933, 199404, 245244, 367866, 592673, 735732, 1185346, 1778019, 2370692, 3556038, 5334057, 7112076, 10668114, 21336228]

約数ペア:

[(1, 21336228), (2, 10668114), (3, 7112076), (4, 5334057), (6, 3556038), (9, 2370692), (12, 1778019), (18, 1185346), (29, 735732), (36, 592673), (58, 367866), (87, 245244), (107, 199404), (116, 183933), (174, 122622), (191, 111708), (214, 99702), (261, 81748), (321, 66468), (348, 61311), (382, 55854), (428, 49851), (522, 40874), (573, 37236), (642, 33234), (764, 27927), (963, 22156), (1044, 20437), (1146, 18618), (1284, 16617), (1719, 12412), (1926, 11078), (2292, 9309), (3103, 6876), (3438, 6206), (3852, 5539)]