21000478538

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{557}}^1\times {\mathrm{1450109}}^1$

素因数の和:1450681

約数の個数: 16

約数和(自身を含む): 33984777960

約数和(自身を除く): 12984299422

約数列:

[1, 2, 13, 26, 557, 1114, 7241, 14482, 1450109, 2900218, 18851417, 37702834, 807710713, 1615421426, 10500239269, 21000478538]

約数ペア:

[(1, 21000478538), (2, 10500239269), (13, 1615421426), (26, 807710713), (557, 37702834), (1114, 18851417), (7241, 2900218), (14482, 1450109)]