21040808

素因数分解:

$2^3\times {\mathrm{739}}^1\times {\mathrm{3559}}^1$

素因数の和:4304

約数の個数: 16

約数和(自身を含む): 39516000

約数和(自身を除く): 18475192

約数列:

[1, 2, 4, 8, 739, 1478, 2956, 3559, 5912, 7118, 14236, 28472, 2630101, 5260202, 10520404, 21040808]

約数ペア:

[(1, 21040808), (2, 10520404), (4, 5260202), (8, 2630101), (739, 28472), (1478, 14236), (2956, 7118), (3559, 5912)]