21969636

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{140831}}^1$

素因数の和:140851

約数の個数: 24

約数和(自身を含む): 55206144

約数和(自身を除く): 33236508

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 140831, 281662, 422493, 563324, 844986, 1689972, 1830803, 3661606, 5492409, 7323212, 10984818, 21969636]

約数ペア:

[(1, 21969636), (2, 10984818), (3, 7323212), (4, 5492409), (6, 3661606), (12, 1830803), (13, 1689972), (26, 844986), (39, 563324), (52, 422493), (78, 281662), (156, 140831)]