20474751

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{307}}^1$

素因数の和:411

約数の個数: 32

約数和(自身を含む): 31223808

約数和(自身を除く): 10749057

約数列:

[1, 3, 11, 33, 43, 47, 129, 141, 307, 473, 517, 921, 1419, 1551, 2021, 3377, 6063, 10131, 13201, 14429, 22231, 39603, 43287, 66693, 145211, 158719, 435633, 476157, 620447, 1861341, 6824917, 20474751]

約数ペア:

[(1, 20474751), (3, 6824917), (11, 1861341), (33, 620447), (43, 476157), (47, 435633), (129, 158719), (141, 145211), (307, 66693), (473, 43287), (517, 39603), (921, 22231), (1419, 14429), (1551, 13201), (2021, 10131), (3377, 6063)]