21133788

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{613}}^1$

素因数の和:663

約数の個数: 72

約数和(自身を含む): 56630448

約数和(自身を除く): 35496660

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 26, 34, 39, 51, 52, 68, 78, 102, 156, 169, 204, 221, 338, 442, 507, 613, 663, 676, 884, 1014, 1226, 1326, 1839, 2028, 2452, 2652, 2873, 3678, 5746, 7356, 7969, 8619, 10421, 11492, 15938, 17238, 20842, 23907, 31263, 31876, 34476, 41684, 47814, 62526, 95628, 103597, 125052, 135473, 207194, 270946, 310791, 406419, 414388, 541892, 621582, 812838, 1243164, 1625676, 1761149, 3522298, 5283447, 7044596, 10566894, 21133788]

約数ペア:

[(1, 21133788), (2, 10566894), (3, 7044596), (4, 5283447), (6, 3522298), (12, 1761149), (13, 1625676), (17, 1243164), (26, 812838), (34, 621582), (39, 541892), (51, 414388), (52, 406419), (68, 310791), (78, 270946), (102, 207194), (156, 135473), (169, 125052), (204, 103597), (221, 95628), (338, 62526), (442, 47814), (507, 41684), (613, 34476), (663, 31876), (676, 31263), (884, 23907), (1014, 20842), (1226, 17238), (1326, 15938), (1839, 11492), (2028, 10421), (2452, 8619), (2652, 7969), (2873, 7356), (3678, 5746)]