21091512

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67601}}^1$

素因数の和:67623

約数の個数: 32

約数和(自身を含む): 56785680

約数和(自身を除く): 35694168

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 67601, 135202, 202803, 270404, 405606, 540808, 811212, 878813, 1622424, 1757626, 2636439, 3515252, 5272878, 7030504, 10545756, 21091512]

約数ペア:

[(1, 21091512), (2, 10545756), (3, 7030504), (4, 5272878), (6, 3515252), (8, 2636439), (12, 1757626), (13, 1622424), (24, 878813), (26, 811212), (39, 540808), (52, 405606), (78, 270404), (104, 202803), (156, 135202), (312, 67601)]