19971578

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{307}}^1\times {\mathrm{2957}}^1$

素因数の和:3277

約数の個数: 16

約数和(自身を含む): 32798304

約数和(自身を除く): 12826726

約数列:

[1, 2, 11, 22, 307, 614, 2957, 3377, 5914, 6754, 32527, 65054, 907799, 1815598, 9985789, 19971578]

約数ペア:

[(1, 19971578), (2, 9985789), (11, 1815598), (22, 907799), (307, 65054), (614, 32527), (2957, 6754), (3377, 5914)]