21045804

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{134909}}^1$

素因数の和:134929

約数の個数: 24

約数和(自身を含む): 52884720

約数和(自身を除く): 31838916

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 134909, 269818, 404727, 539636, 809454, 1618908, 1753817, 3507634, 5261451, 7015268, 10522902, 21045804]

約数ペア:

[(1, 21045804), (2, 10522902), (3, 7015268), (4, 5261451), (6, 3507634), (12, 1753817), (13, 1618908), (26, 809454), (39, 539636), (52, 404727), (78, 269818), (156, 134909)]