20687583

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^2\times {\mathrm{283}}^1$

素因数の和:411

約数の個数: 24

約数和(自身を含む): 32180608

約数和(自身を除く): 11493025

約数列:

[1, 3, 7, 21, 59, 177, 283, 413, 849, 1239, 1981, 3481, 5943, 10443, 16697, 24367, 50091, 73101, 116879, 350637, 985123, 2955369, 6895861, 20687583]

約数ペア:

[(1, 20687583), (3, 6895861), (7, 2955369), (21, 985123), (59, 350637), (177, 116879), (283, 73101), (413, 50091), (849, 24367), (1239, 16697), (1981, 10443), (3481, 5943)]