21481208

素因数分解:

$2^3\times 7^2\times {\mathrm{54799}}^1$

素因数の和:54819

約数の個数: 24

約数和(自身を含む): 46854000

約数和(自身を除く): 25372792

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 54799, 109598, 219196, 383593, 438392, 767186, 1534372, 2685151, 3068744, 5370302, 10740604, 21481208]

約数ペア:

[(1, 21481208), (2, 10740604), (4, 5370302), (7, 3068744), (8, 2685151), (14, 1534372), (28, 767186), (49, 438392), (56, 383593), (98, 219196), (196, 109598), (392, 54799)]