678711

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:302

約数の個数: 16

約数和(自身を含む): 1001088

約数和(自身を除く): 322377

約数列:

[1, 3, 11, 33, 131, 157, 393, 471, 1441, 1727, 4323, 5181, 20567, 61701, 226237, 678711]

約数ペア:

[(1, 678711), (3, 226237), (11, 61701), (33, 20567), (131, 5181), (157, 4323), (393, 1727), (471, 1441)]