201991166

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{443}}^1$

素因数の和:561

約数の個数: 48

約数和(自身を含む): 351008640

約数和(自身を除く): 149017474

約数列:

[1, 2, 13, 19, 26, 38, 71, 142, 169, 247, 338, 443, 494, 886, 923, 1349, 1846, 2698, 3211, 5759, 6422, 8417, 11518, 11999, 16834, 17537, 23998, 31453, 35074, 62906, 74867, 109421, 149734, 218842, 227981, 408889, 455962, 597607, 817778, 1195214, 1422473, 2844946, 5315557, 7768891, 10631114, 15537782, 100995583, 201991166]

約数ペア:

[(1, 201991166), (2, 100995583), (13, 15537782), (19, 10631114), (26, 7768891), (38, 5315557), (71, 2844946), (142, 1422473), (169, 1195214), (247, 817778), (338, 597607), (443, 455962), (494, 408889), (886, 227981), (923, 218842), (1349, 149734), (1846, 109421), (2698, 74867), (3211, 62906), (5759, 35074), (6422, 31453), (8417, 23998), (11518, 17537), (11999, 16834)]