20828415

素因数分解:

$3^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{4523}}^1$

素因数の和:4838

約数の個数: 16

約数和(自身を含む): 33441408

約数和(自身を除く): 12612993

約数列:

[1, 3, 5, 15, 307, 921, 1535, 4523, 4605, 13569, 22615, 67845, 1388561, 4165683, 6942805, 20828415]

約数ペア:

[(1, 20828415), (3, 6942805), (5, 4165683), (15, 1388561), (307, 67845), (921, 22615), (1535, 13569), (4523, 4605)]