20128827

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{5279}}^1$

素因数の和:5354

約数の個数: 16

約数和(自身を含む): 28385280

約数和(自身を除く): 8256453

約数列:

[1, 3, 31, 41, 93, 123, 1271, 3813, 5279, 15837, 163649, 216439, 490947, 649317, 6709609, 20128827]

約数ペア:

[(1, 20128827), (3, 6709609), (31, 649317), (41, 490947), (93, 216439), (123, 163649), (1271, 15837), (3813, 5279)]