21335757

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1\times {\mathrm{809}}^1$

素因数の和:1020

約数の個数: 16

約数和(自身を含む): 29160000

約数和(自身を除く): 7824243

約数列:

[1, 3, 59, 149, 177, 447, 809, 2427, 8791, 26373, 47731, 120541, 143193, 361623, 7111919, 21335757]

約数ペア:

[(1, 21335757), (3, 7111919), (59, 361623), (149, 143193), (177, 120541), (447, 47731), (809, 26373), (2427, 8791)]