21393712

素因数分解:

$2^4\times {\mathrm{211}}^1\times {\mathrm{6337}}^1$

素因数の和:6556

約数の個数: 20

約数和(自身を含む): 41653336

約数和(自身を除く): 20259624

約数列:

[1, 2, 4, 8, 16, 211, 422, 844, 1688, 3376, 6337, 12674, 25348, 50696, 101392, 1337107, 2674214, 5348428, 10696856, 21393712]

約数ペア:

[(1, 21393712), (2, 10696856), (4, 5348428), (8, 2674214), (16, 1337107), (211, 101392), (422, 50696), (844, 25348), (1688, 12674), (3376, 6337)]