20899065873

素因数分解:

$3^1\times 7^1\times {\mathrm{1303}}^1\times {\mathrm{763771}}^1$

素因数の和:765084

約数の個数: 16

約数和(自身を含む): 31870678016

約数和(自身を除く): 10971612143

約数列:

[1, 3, 7, 21, 1303, 3909, 9121, 27363, 763771, 2291313, 5346397, 16039191, 995193613, 2985580839, 6966355291, 20899065873]

約数ペア:

[(1, 20899065873), (3, 6966355291), (7, 2985580839), (21, 995193613), (1303, 16039191), (3909, 5346397), (9121, 2291313), (27363, 763771)]