1222221

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1$

素因数の和:82

約数の個数: 48

約数和(自身を含む): 2264192

約数和(自身を除く): 1041971

約数列:

[1, 3, 7, 11, 13, 21, 33, 37, 39, 77, 91, 111, 121, 143, 231, 259, 273, 363, 407, 429, 481, 777, 847, 1001, 1221, 1443, 1573, 2541, 2849, 3003, 3367, 4477, 4719, 5291, 8547, 10101, 11011, 13431, 15873, 31339, 33033, 37037, 58201, 94017, 111111, 174603, 407407, 1222221]

約数ペア:

[(1, 1222221), (3, 407407), (7, 174603), (11, 111111), (13, 94017), (21, 58201), (33, 37037), (37, 33033), (39, 31339), (77, 15873), (91, 13431), (111, 11011), (121, 10101), (143, 8547), (231, 5291), (259, 4719), (273, 4477), (363, 3367), (407, 3003), (429, 2849), (481, 2541), (777, 1573), (847, 1443), (1001, 1221)]