20485695

素因数分解:

$3^1\times 5^1\times {\mathrm{269}}^1\times {\mathrm{5077}}^1$

素因数の和:5354

約数の個数: 16

約数和(自身を含む): 32905440

約数和(自身を除く): 12419745

約数列:

[1, 3, 5, 15, 269, 807, 1345, 4035, 5077, 15231, 25385, 76155, 1365713, 4097139, 6828565, 20485695]

約数ペア:

[(1, 20485695), (3, 6828565), (5, 4097139), (15, 1365713), (269, 76155), (807, 25385), (1345, 15231), (4035, 5077)]