19885818

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:403

約数の個数: 64

約数和(自身を含む): 45895680

約数和(自身を除く): 26009862

約数列:

[1, 2, 3, 6, 17, 19, 31, 34, 38, 51, 57, 62, 93, 102, 114, 186, 323, 331, 527, 589, 646, 662, 969, 993, 1054, 1178, 1581, 1767, 1938, 1986, 3162, 3534, 5627, 6289, 10013, 10261, 11254, 12578, 16881, 18867, 20026, 20522, 30039, 30783, 33762, 37734, 60078, 61566, 106913, 174437, 194959, 213826, 320739, 348874, 389918, 523311, 584877, 641478, 1046622, 1169754, 3314303, 6628606, 9942909, 19885818]

約数ペア:

[(1, 19885818), (2, 9942909), (3, 6628606), (6, 3314303), (17, 1169754), (19, 1046622), (31, 641478), (34, 584877), (38, 523311), (51, 389918), (57, 348874), (62, 320739), (93, 213826), (102, 194959), (114, 174437), (186, 106913), (323, 61566), (331, 60078), (527, 37734), (589, 33762), (646, 30783), (662, 30039), (969, 20522), (993, 20026), (1054, 18867), (1178, 16881), (1581, 12578), (1767, 11254), (1938, 10261), (1986, 10013), (3162, 6289), (3534, 5627)]