20145309

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{7121}}^1$

素因数の和:7188

約数の個数: 16

約数和(自身を含む): 28715904

約数和(自身を除く): 8570595

約数列:

[1, 3, 23, 41, 69, 123, 943, 2829, 7121, 21363, 163783, 291961, 491349, 875883, 6715103, 20145309]

約数ペア:

[(1, 20145309), (3, 6715103), (23, 875883), (41, 491349), (69, 291961), (123, 163783), (943, 21363), (2829, 7121)]