18677841

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2207}}^1$

素因数の和:2261

約数の個数: 32

約数和(自身を含む): 31653888

約数和(自身を除く): 12976047

約数列:

[1, 3, 7, 13, 21, 31, 39, 91, 93, 217, 273, 403, 651, 1209, 2207, 2821, 6621, 8463, 15449, 28691, 46347, 68417, 86073, 200837, 205251, 478919, 602511, 889421, 1436757, 2668263, 6225947, 18677841]

約数ペア:

[(1, 18677841), (3, 6225947), (7, 2668263), (13, 1436757), (21, 889421), (31, 602511), (39, 478919), (91, 205251), (93, 200837), (217, 86073), (273, 68417), (403, 46347), (651, 28691), (1209, 15449), (2207, 8463), (2821, 6621)]