21667866

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{467}}^1$

素因数の和:539

約数の個数: 64

約数和(自身を含む): 51217920

約数和(自身を除く): 29550054

約数列:

[1, 2, 3, 6, 11, 19, 22, 33, 37, 38, 57, 66, 74, 111, 114, 209, 222, 407, 418, 467, 627, 703, 814, 934, 1221, 1254, 1401, 1406, 2109, 2442, 2802, 4218, 5137, 7733, 8873, 10274, 15411, 15466, 17279, 17746, 23199, 26619, 30822, 34558, 46398, 51837, 53238, 97603, 103674, 190069, 195206, 292809, 328301, 380138, 570207, 585618, 656602, 984903, 1140414, 1969806, 3611311, 7222622, 10833933, 21667866]

約数ペア:

[(1, 21667866), (2, 10833933), (3, 7222622), (6, 3611311), (11, 1969806), (19, 1140414), (22, 984903), (33, 656602), (37, 585618), (38, 570207), (57, 380138), (66, 328301), (74, 292809), (111, 195206), (114, 190069), (209, 103674), (222, 97603), (407, 53238), (418, 51837), (467, 46398), (627, 34558), (703, 30822), (814, 26619), (934, 23199), (1221, 17746), (1254, 17279), (1401, 15466), (1406, 15411), (2109, 10274), (2442, 8873), (2802, 7733), (4218, 5137)]