19868919

素因数分解:

$3^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{2711}}^1$

素因数の和:3070

約数の個数: 16

約数和(自身を含む): 30374400

約数和(自身を除く): 10505481

約数列:

[1, 3, 7, 21, 349, 1047, 2443, 2711, 7329, 8133, 18977, 56931, 946139, 2838417, 6622973, 19868919]

約数ペア:

[(1, 19868919), (3, 6622973), (7, 2838417), (21, 946139), (349, 56931), (1047, 18977), (2443, 8133), (2711, 7329)]