21719404

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{443}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 46545408

約数和(自身を除く): 24826004

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 103, 119, 206, 238, 412, 443, 476, 721, 886, 1442, 1751, 1772, 2884, 3101, 3502, 6202, 7004, 7531, 12257, 12404, 15062, 24514, 30124, 45629, 49028, 52717, 91258, 105434, 182516, 210868, 319403, 638806, 775693, 1277612, 1551386, 3102772, 5429851, 10859702, 21719404]

約数ペア:

[(1, 21719404), (2, 10859702), (4, 5429851), (7, 3102772), (14, 1551386), (17, 1277612), (28, 775693), (34, 638806), (68, 319403), (103, 210868), (119, 182516), (206, 105434), (238, 91258), (412, 52717), (443, 49028), (476, 45629), (721, 30124), (886, 24514), (1442, 15062), (1751, 12404), (1772, 12257), (2884, 7531), (3101, 7004), (3502, 6202)]