28970667

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{719}}^1$

素因数の和:784

約数の個数: 36

約数和(自身を含む): 47305440

約数和(自身を除く): 18334773

約数列:

[1, 3, 9, 11, 33, 37, 99, 111, 121, 333, 363, 407, 719, 1089, 1221, 2157, 3663, 4477, 6471, 7909, 13431, 23727, 26603, 40293, 71181, 79809, 86999, 239427, 260997, 292633, 782991, 877899, 2633697, 3218963, 9656889, 28970667]

約数ペア:

[(1, 28970667), (3, 9656889), (9, 3218963), (11, 2633697), (33, 877899), (37, 782991), (99, 292633), (111, 260997), (121, 239427), (333, 86999), (363, 79809), (407, 71181), (719, 40293), (1089, 26603), (1221, 23727), (2157, 13431), (3663, 7909), (4477, 6471)]