20418937

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{881}}^1$

素因数の和:949

約数の個数: 24

約数和(自身を含む): 26544672

約数和(自身を除く): 6125735

約数列:

[1, 7, 11, 43, 49, 77, 301, 473, 539, 881, 2107, 3311, 6167, 9691, 23177, 37883, 43169, 67837, 265181, 416713, 474859, 1856267, 2916991, 20418937]

約数ペア:

[(1, 20418937), (7, 2916991), (11, 1856267), (43, 474859), (49, 416713), (77, 265181), (301, 67837), (473, 43169), (539, 37883), (881, 23177), (2107, 9691), (3311, 6167)]