21595928

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{193}}^1\times {\mathrm{197}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 41484960

約数和(自身を除く): 19889032

約数列:

[1, 2, 4, 8, 71, 142, 193, 197, 284, 386, 394, 568, 772, 788, 1544, 1576, 13703, 13987, 27406, 27974, 38021, 54812, 55948, 76042, 109624, 111896, 152084, 304168, 2699491, 5398982, 10797964, 21595928]

約数ペア:

[(1, 21595928), (2, 10797964), (4, 5398982), (8, 2699491), (71, 304168), (142, 152084), (193, 111896), (197, 109624), (284, 76042), (386, 55948), (394, 54812), (568, 38021), (772, 27974), (788, 27406), (1544, 13987), (1576, 13703)]