420898989

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1\times {\mathrm{2731}}^1$

素因数の和:2961

約数の個数: 32

約数和(自身を含む): 660925440

約数和(自身を除く): 240026451

約数列:

[1, 3, 7, 21, 41, 123, 179, 287, 537, 861, 1253, 2731, 3759, 7339, 8193, 19117, 22017, 51373, 57351, 111971, 154119, 335913, 488849, 783797, 1466547, 2351391, 3421943, 10265829, 20042809, 60128427, 140299663, 420898989]

約数ペア:

[(1, 420898989), (3, 140299663), (7, 60128427), (21, 20042809), (41, 10265829), (123, 3421943), (179, 2351391), (287, 1466547), (537, 783797), (861, 488849), (1253, 335913), (2731, 154119), (3759, 111971), (7339, 57351), (8193, 51373), (19117, 22017)]