12221209

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{421}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 17015040

約数和(自身を除く): 4793831

約数列:

[1, 7, 11, 13, 29, 77, 91, 143, 203, 319, 377, 421, 1001, 2233, 2639, 2947, 4147, 4631, 5473, 12209, 29029, 32417, 38311, 60203, 85463, 134299, 158717, 421421, 940093, 1111019, 1745887, 12221209]

約数ペア:

[(1, 12221209), (7, 1745887), (11, 1111019), (13, 940093), (29, 421421), (77, 158717), (91, 134299), (143, 85463), (203, 60203), (319, 38311), (377, 32417), (421, 29029), (1001, 12209), (2233, 5473), (2639, 4631), (2947, 4147)]