20415915

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{11633}}^1$

素因数の和:11660

約数の個数: 32

約数和(自身を含む): 39090240

約数和(自身を除く): 18674325

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 11633, 34899, 58165, 104697, 151229, 174495, 314091, 453687, 523485, 756145, 1361061, 1570455, 2268435, 4083183, 6805305, 20415915]

約数ペア:

[(1, 20415915), (3, 6805305), (5, 4083183), (9, 2268435), (13, 1570455), (15, 1361061), (27, 756145), (39, 523485), (45, 453687), (65, 314091), (117, 174495), (135, 151229), (195, 104697), (351, 58165), (585, 34899), (1755, 11633)]