17420821

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1861}}^1$

素因数の和:1932

約数の個数: 16

約数和(自身を含む): 20377728

約数和(自身を除く): 2956907

約数列:

[1, 11, 23, 37, 253, 407, 851, 1861, 9361, 20471, 42803, 68857, 470833, 757427, 1583711, 17420821]

約数ペア:

[(1, 17420821), (11, 1583711), (23, 757427), (37, 470833), (253, 68857), (407, 42803), (851, 20471), (1861, 9361)]