20190021

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{9439}}^1$

素因数の和:9496

約数の個数: 16

約数和(自身を含む): 28999680

約数和(自身を除く): 8809659

約数列:

[1, 3, 23, 31, 69, 93, 713, 2139, 9439, 28317, 217097, 292609, 651291, 877827, 6730007, 20190021]

約数ペア:

[(1, 20190021), (3, 6730007), (23, 877827), (31, 651291), (69, 292609), (93, 217097), (713, 28317), (2139, 9439)]