20508719

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{3209}}^1$

素因数の和:3310

約数の個数: 16

約数和(自身を含む): 25885440

約数和(自身を除く): 5376721

約数列:

[1, 7, 11, 77, 83, 581, 913, 3209, 6391, 22463, 35299, 247093, 266347, 1864429, 2929817, 20508719]

約数ペア:

[(1, 20508719), (7, 2929817), (11, 1864429), (77, 266347), (83, 247093), (581, 35299), (913, 22463), (3209, 6391)]