18996542

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{83}}^1\times {\mathrm{317}}^1$

素因数の和:440

約数の個数: 24

約数和(自身を含む): 30531816

約数和(自身を除く): 11535274

約数列:

[1, 2, 19, 38, 83, 166, 317, 361, 634, 722, 1577, 3154, 6023, 12046, 26311, 29963, 52622, 59926, 114437, 228874, 499909, 999818, 9498271, 18996542]

約数ペア:

[(1, 18996542), (2, 9498271), (19, 999818), (38, 499909), (83, 228874), (166, 114437), (317, 59926), (361, 52622), (634, 29963), (722, 26311), (1577, 12046), (3154, 6023)]