21546476

素因数分解:

$2^2\times 7^2\times {\mathrm{211}}^1\times {\mathrm{521}}^1$

素因数の和:750

約数の個数: 36

約数和(自身を含む): 44154936

約数和(自身を除く): 22608460

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 211, 422, 521, 844, 1042, 1477, 2084, 2954, 3647, 5908, 7294, 10339, 14588, 20678, 25529, 41356, 51058, 102116, 109931, 219862, 439724, 769517, 1539034, 3078068, 5386619, 10773238, 21546476]

約数ペア:

[(1, 21546476), (2, 10773238), (4, 5386619), (7, 3078068), (14, 1539034), (28, 769517), (49, 439724), (98, 219862), (196, 109931), (211, 102116), (422, 51058), (521, 41356), (844, 25529), (1042, 20678), (1477, 14588), (2084, 10339), (2954, 7294), (3647, 5908)]