21782878

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{2729}}^1$

素因数の和:3051

約数の個数: 16

約数和(自身を含む): 35315280

約数和(自身を除く): 13532402

約数列:

[1, 2, 13, 26, 307, 614, 2729, 3991, 5458, 7982, 35477, 70954, 837803, 1675606, 10891439, 21782878]

約数ペア:

[(1, 21782878), (2, 10891439), (13, 1675606), (26, 837803), (307, 70954), (614, 35477), (2729, 7982), (3991, 5458)]