678647973

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{309461}}^1$

素因数の和:309524

約数の個数: 16

約数和(自身を含む): 980375616

約数和(自身を除く): 301727643

約数列:

[1, 3, 17, 43, 51, 129, 731, 2193, 309461, 928383, 5260837, 13306823, 15782511, 39920469, 226215991, 678647973]

約数ペア:

[(1, 678647973), (3, 226215991), (17, 39920469), (43, 15782511), (51, 13306823), (129, 5260837), (731, 928383), (2193, 309461)]