20509616

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{75403}}^1$

素因数の和:75428

約数の個数: 20

約数和(自身を含む): 42075432

約数和(自身を除く): 21565816

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 75403, 150806, 301612, 603224, 1206448, 1281851, 2563702, 5127404, 10254808, 20509616]

約数ペア:

[(1, 20509616), (2, 10254808), (4, 5127404), (8, 2563702), (16, 1281851), (17, 1206448), (34, 603224), (68, 301612), (136, 150806), (272, 75403)]