20125529319

素因数分解:

$3^1\times 7^1\times {\mathrm{1531}}^1\times {\mathrm{625969}}^1$

素因数の和:627510

約数の個数: 16

約数和(自身を含む): 30687553280

約数和(自身を除く): 10562023961

約数列:

[1, 3, 7, 21, 1531, 4593, 10717, 32151, 625969, 1877907, 4381783, 13145349, 958358539, 2875075617, 6708509773, 20125529319]

約数ペア:

[(1, 20125529319), (3, 6708509773), (7, 2875075617), (21, 958358539), (1531, 13145349), (4593, 4381783), (10717, 1877907), (32151, 625969)]