393267339

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{20719}}^1$

素因数の和:20784

約数の個数: 32

約数和(自身を含む): 629888000

約数和(自身を除く): 236620661

約数列:

[1, 3, 9, 19, 27, 37, 57, 111, 171, 333, 513, 703, 999, 2109, 6327, 18981, 20719, 62157, 186471, 393661, 559413, 766603, 1180983, 2299809, 3542949, 6899427, 10628847, 14565457, 20698281, 43696371, 131089113, 393267339]

約数ペア:

[(1, 393267339), (3, 131089113), (9, 43696371), (19, 20698281), (27, 14565457), (37, 10628847), (57, 6899427), (111, 3542949), (171, 2299809), (333, 1180983), (513, 766603), (703, 559413), (999, 393661), (2109, 186471), (6327, 62157), (18981, 20719)]