21011804

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{4463}}^1$

素因数の和:4585

約数の個数: 24

約数和(自身を含む): 40497408

約数和(自身を除く): 19485604

約数列:

[1, 2, 4, 11, 22, 44, 107, 214, 428, 1177, 2354, 4463, 4708, 8926, 17852, 49093, 98186, 196372, 477541, 955082, 1910164, 5252951, 10505902, 21011804]

約数ペア:

[(1, 21011804), (2, 10505902), (4, 5252951), (11, 1910164), (22, 955082), (44, 477541), (107, 196372), (214, 98186), (428, 49093), (1177, 17852), (2354, 8926), (4463, 4708)]