21813916

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{1087}}^1$

素因数の和:1293

約数の個数: 24

約数和(自身を含む): 39755520

約数和(自身を除く): 17941604

約数列:

[1, 2, 4, 29, 58, 116, 173, 346, 692, 1087, 2174, 4348, 5017, 10034, 20068, 31523, 63046, 126092, 188051, 376102, 752204, 5453479, 10906958, 21813916]

約数ペア:

[(1, 21813916), (2, 10906958), (4, 5453479), (29, 752204), (58, 376102), (116, 188051), (173, 126092), (346, 63046), (692, 31523), (1087, 20068), (2174, 10034), (4348, 5017)]