20782455

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{1021}}^1$

素因数の和:1111

約数の個数: 32

約数和(自身を含む): 35320320

約数和(自身を除く): 14537865

約数列:

[1, 3, 5, 15, 23, 59, 69, 115, 177, 295, 345, 885, 1021, 1357, 3063, 4071, 5105, 6785, 15315, 20355, 23483, 60239, 70449, 117415, 180717, 301195, 352245, 903585, 1385497, 4156491, 6927485, 20782455]

約数ペア:

[(1, 20782455), (3, 6927485), (5, 4156491), (15, 1385497), (23, 903585), (59, 352245), (69, 301195), (115, 180717), (177, 117415), (295, 70449), (345, 60239), (885, 23483), (1021, 20355), (1357, 15315), (3063, 6785), (4071, 5105)]