21205291204

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{5179}}^1\times {\mathrm{9391}}^1$

素因数の和:14683

約数の個数: 24

約数和(自身を含む): 37460931200

約数和(自身を除く): 16255639996

約数列:

[1, 2, 4, 109, 218, 436, 5179, 9391, 10358, 18782, 20716, 37564, 564511, 1023619, 1129022, 2047238, 2258044, 4094476, 48635989, 97271978, 194543956, 5301322801, 10602645602, 21205291204]

約数ペア:

[(1, 21205291204), (2, 10602645602), (4, 5301322801), (109, 194543956), (218, 97271978), (436, 48635989), (5179, 4094476), (9391, 2258044), (10358, 2047238), (18782, 1129022), (20716, 1023619), (37564, 564511)]