18778557

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2287}}^1$

素因数の和:2337

約数の個数: 32

約数和(自身を含む): 31629312

約数和(自身を除く): 12850755

約数列:

[1, 3, 7, 17, 21, 23, 51, 69, 119, 161, 357, 391, 483, 1173, 2287, 2737, 6861, 8211, 16009, 38879, 48027, 52601, 116637, 157803, 272153, 368207, 816459, 894217, 1104621, 2682651, 6259519, 18778557]

約数ペア:

[(1, 18778557), (3, 6259519), (7, 2682651), (17, 1104621), (21, 894217), (23, 816459), (51, 368207), (69, 272153), (119, 157803), (161, 116637), (357, 52601), (391, 48027), (483, 38879), (1173, 16009), (2287, 8211), (2737, 6861)]