18312833

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 24192000

約数和(自身を除く): 5879167

約数列:

[1, 7, 11, 29, 59, 77, 139, 203, 319, 413, 649, 973, 1529, 1711, 2233, 4031, 4543, 8201, 10703, 11977, 18821, 28217, 44341, 57407, 90211, 131747, 237829, 310387, 631477, 1664803, 2616119, 18312833]

約数ペア:

[(1, 18312833), (7, 2616119), (11, 1664803), (29, 631477), (59, 310387), (77, 237829), (139, 131747), (203, 90211), (319, 57407), (413, 44341), (649, 28217), (973, 18821), (1529, 11977), (1711, 10703), (2233, 8201), (4031, 4543)]