18931731

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2237}}^1$

素因数の和:2291

約数の個数: 32

約数和(自身を含む): 32083968

約数和(自身を除く): 13152237

約数列:

[1, 3, 7, 13, 21, 31, 39, 91, 93, 217, 273, 403, 651, 1209, 2237, 2821, 6711, 8463, 15659, 29081, 46977, 69347, 87243, 203567, 208041, 485429, 610701, 901511, 1456287, 2704533, 6310577, 18931731]

約数ペア:

[(1, 18931731), (3, 6310577), (7, 2704533), (13, 1456287), (21, 901511), (31, 610701), (39, 485429), (91, 208041), (93, 203567), (217, 87243), (273, 69347), (403, 46977), (651, 29081), (1209, 15659), (2237, 8463), (2821, 6711)]