21325564

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{6121}}^1$

素因数の和:6205

約数の個数: 24

約数和(自身を含む): 40797008

約数和(自身を除く): 19471444

約数列:

[1, 2, 4, 13, 26, 52, 67, 134, 268, 871, 1742, 3484, 6121, 12242, 24484, 79573, 159146, 318292, 410107, 820214, 1640428, 5331391, 10662782, 21325564]

約数ペア:

[(1, 21325564), (2, 10662782), (4, 5331391), (13, 1640428), (26, 820214), (52, 410107), (67, 318292), (134, 159146), (268, 79573), (871, 24484), (1742, 12242), (3484, 6121)]