643584134

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{49991}}^1$

素因数の和:50191

約数の個数: 16

約数和(自身を含む): 995240736

約数和(自身を除く): 351656602

約数列:

[1, 2, 41, 82, 157, 314, 6437, 12874, 49991, 99982, 2049631, 4099262, 7848587, 15697174, 321792067, 643584134]

約数ペア:

[(1, 643584134), (2, 321792067), (41, 15697174), (82, 7848587), (157, 4099262), (314, 2049631), (6437, 99982), (12874, 49991)]