20786636

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{3881}}^1$

素因数の和:4001

約数の個数: 24

約数和(自身を含む): 39565344

約数和(自身を除く): 18778708

約数列:

[1, 2, 4, 13, 26, 52, 103, 206, 412, 1339, 2678, 3881, 5356, 7762, 15524, 50453, 100906, 201812, 399743, 799486, 1598972, 5196659, 10393318, 20786636]

約数ペア:

[(1, 20786636), (2, 10393318), (4, 5196659), (13, 1598972), (26, 799486), (52, 399743), (103, 201812), (206, 100906), (412, 50453), (1339, 15524), (2678, 7762), (3881, 5356)]