20455029

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 36391680

約数和(自身を除く): 15936651

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 71, 119, 153, 213, 269, 357, 497, 639, 807, 1071, 1207, 1491, 1883, 2421, 3621, 4473, 4573, 5649, 8449, 10863, 13719, 16947, 19099, 25347, 32011, 41157, 57297, 76041, 96033, 133693, 171891, 288099, 324683, 401079, 974049, 1203237, 2272781, 2922147, 6818343, 20455029]

約数ペア:

[(1, 20455029), (3, 6818343), (7, 2922147), (9, 2272781), (17, 1203237), (21, 974049), (51, 401079), (63, 324683), (71, 288099), (119, 171891), (153, 133693), (213, 96033), (269, 76041), (357, 57297), (497, 41157), (639, 32011), (807, 25347), (1071, 19099), (1207, 16947), (1491, 13719), (1883, 10863), (2421, 8449), (3621, 5649), (4473, 4573)]