20984795

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{6869}}^1$

素因数の和:6934

約数の個数: 16

約数和(自身を含む): 27699840

約数和(自身を除く): 6715045

約数列:

[1, 5, 13, 47, 65, 235, 611, 3055, 6869, 34345, 89297, 322843, 446485, 1614215, 4196959, 20984795]

約数ペア:

[(1, 20984795), (5, 4196959), (13, 1614215), (47, 446485), (65, 322843), (235, 89297), (611, 34345), (3055, 6869)]