20580868

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{66821}}^1$

素因数の和:66843

約数の個数: 24

約数和(自身を含む): 44904384

約数和(自身を除く): 24323516

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 66821, 133642, 267284, 467747, 735031, 935494, 1470062, 1870988, 2940124, 5145217, 10290434, 20580868]

約数ペア:

[(1, 20580868), (2, 10290434), (4, 5145217), (7, 2940124), (11, 1870988), (14, 1470062), (22, 935494), (28, 735031), (44, 467747), (77, 267284), (154, 133642), (308, 66821)]