815005359

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{300851}}^1$

素因数の和:300907

約数の個数: 24

約数和(自身を含む): 1376698752

約数和(自身を除く): 561693393

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 300851, 902553, 2105957, 2707659, 6317871, 12936593, 18953613, 38809779, 90556151, 116429337, 271668453, 815005359]

約数ペア:

[(1, 815005359), (3, 271668453), (7, 116429337), (9, 90556151), (21, 38809779), (43, 18953613), (63, 12936593), (129, 6317871), (301, 2707659), (387, 2105957), (903, 902553), (2709, 300851)]