20641218

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{264631}}^1$

素因数の和:264649

約数の個数: 16

約数和(自身を含む): 44458176

約数和(自身を除く): 23816958

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 264631, 529262, 793893, 1587786, 3440203, 6880406, 10320609, 20641218]

約数ペア:

[(1, 20641218), (2, 10320609), (3, 6880406), (6, 3440203), (13, 1587786), (26, 793893), (39, 529262), (78, 264631)]