21280732

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{3203}}^1$

素因数の和:3369

約数の個数: 24

約数和(自身を含む): 40908672

約数和(自身を除く): 19627940

約数列:

[1, 2, 4, 11, 22, 44, 151, 302, 604, 1661, 3203, 3322, 6406, 6644, 12812, 35233, 70466, 140932, 483653, 967306, 1934612, 5320183, 10640366, 21280732]

約数ペア:

[(1, 21280732), (2, 10640366), (4, 5320183), (11, 1934612), (22, 967306), (44, 483653), (151, 140932), (302, 70466), (604, 35233), (1661, 12812), (3203, 6644), (3322, 6406)]