21009714

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{673}}^1$

素因数の和:743

約数の個数: 48

約数和(自身を含む): 47330976

約数和(自身を除く): 26321262

約数列:

[1, 2, 3, 6, 11, 22, 33, 43, 66, 86, 121, 129, 242, 258, 363, 473, 673, 726, 946, 1346, 1419, 2019, 2838, 4038, 5203, 7403, 10406, 14806, 15609, 22209, 28939, 31218, 44418, 57878, 81433, 86817, 162866, 173634, 244299, 318329, 488598, 636658, 954987, 1909974, 3501619, 7003238, 10504857, 21009714]

約数ペア:

[(1, 21009714), (2, 10504857), (3, 7003238), (6, 3501619), (11, 1909974), (22, 954987), (33, 636658), (43, 488598), (66, 318329), (86, 244299), (121, 173634), (129, 162866), (242, 86817), (258, 81433), (363, 57878), (473, 44418), (673, 31218), (726, 28939), (946, 22209), (1346, 15609), (1419, 14806), (2019, 10406), (2838, 7403), (4038, 5203)]