20180121021

素因数分解:

$3^2\times {\mathrm{1619}}^1\times {\mathrm{1384951}}^1$

素因数の和:1386576

約数の個数: 12

約数和(自身を含む): 29167089120

約数和(自身を除く): 8986968099

約数列:

[1, 3, 9, 1619, 4857, 14571, 1384951, 4154853, 12464559, 2242235669, 6726707007, 20180121021]

約数ペア:

[(1, 20180121021), (3, 6726707007), (9, 2242235669), (1619, 12464559), (4857, 4154853), (14571, 1384951)]