20455239

素因数分解:

$3^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{2791}}^1$

素因数の和:3150

約数の個数: 16

約数和(自身を含む): 31270400

約数和(自身を除く): 10815161

約数列:

[1, 3, 7, 21, 349, 1047, 2443, 2791, 7329, 8373, 19537, 58611, 974059, 2922177, 6818413, 20455239]

約数ペア:

[(1, 20455239), (3, 6818413), (7, 2922177), (21, 974059), (349, 58611), (1047, 19537), (2443, 8373), (2791, 7329)]