21041956

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{3581}}^1$

素因数の和:3711

約数の個数: 24

約数和(自身を含む): 40018104

約数和(自身を除く): 18976148

約数列:

[1, 2, 4, 13, 26, 52, 113, 226, 452, 1469, 2938, 3581, 5876, 7162, 14324, 46553, 93106, 186212, 404653, 809306, 1618612, 5260489, 10520978, 21041956]

約数ペア:

[(1, 21041956), (2, 10520978), (4, 5260489), (13, 1618612), (26, 809306), (52, 404653), (113, 186212), (226, 93106), (452, 46553), (1469, 14324), (2938, 7162), (3581, 5876)]