20673289

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{1447}}^1$

素因数の和:1624

約数の個数: 16

約数和(自身を含む): 25623808

約数和(自身を除く): 4950519

約数列:

[1, 7, 13, 91, 157, 1099, 1447, 2041, 10129, 14287, 18811, 131677, 227179, 1590253, 2953327, 20673289]

約数ペア:

[(1, 20673289), (7, 2953327), (13, 1590253), (91, 227179), (157, 131677), (1099, 18811), (1447, 14287), (2041, 10129)]