21611678

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{6257}}^1$

素因数の和:6427

約数の個数: 16

約数和(自身を含む): 35595504

約数和(自身を除く): 13983826

約数列:

[1, 2, 11, 22, 157, 314, 1727, 3454, 6257, 12514, 68827, 137654, 982349, 1964698, 10805839, 21611678]

約数ペア:

[(1, 21611678), (2, 10805839), (11, 1964698), (22, 982349), (157, 137654), (314, 68827), (1727, 12514), (3454, 6257)]