20741757

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{419}}^1\times {\mathrm{569}}^1$

素因数の和:1020

約数の個数: 16

約数和(自身を含む): 28728000

約数和(自身を除く): 7986243

約数列:

[1, 3, 29, 87, 419, 569, 1257, 1707, 12151, 16501, 36453, 49503, 238411, 715233, 6913919, 20741757]

約数ペア:

[(1, 20741757), (3, 6913919), (29, 715233), (87, 238411), (419, 49503), (569, 36453), (1257, 16501), (1707, 12151)]