21075756

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{135101}}^1$

素因数の和:135121

約数の個数: 24

約数和(自身を含む): 52959984

約数和(自身を除く): 31884228

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 135101, 270202, 405303, 540404, 810606, 1621212, 1756313, 3512626, 5268939, 7025252, 10537878, 21075756]

約数ペア:

[(1, 21075756), (2, 10537878), (3, 7025252), (4, 5268939), (6, 3512626), (12, 1756313), (13, 1621212), (26, 810606), (39, 540404), (52, 405303), (78, 270202), (156, 135101)]