21821888

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{223}}^1$

素因数の和:385

約数の個数: 56

約数和(自身を含む): 47792640

約数和(自身を除く): 25970752

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 139, 176, 223, 278, 352, 446, 556, 704, 892, 1112, 1529, 1784, 2224, 2453, 3058, 3568, 4448, 4906, 6116, 7136, 8896, 9812, 12232, 14272, 19624, 24464, 30997, 39248, 48928, 61994, 78496, 97856, 123988, 156992, 247976, 340967, 495952, 681934, 991904, 1363868, 1983808, 2727736, 5455472, 10910944, 21821888]

約数ペア:

[(1, 21821888), (2, 10910944), (4, 5455472), (8, 2727736), (11, 1983808), (16, 1363868), (22, 991904), (32, 681934), (44, 495952), (64, 340967), (88, 247976), (139, 156992), (176, 123988), (223, 97856), (278, 78496), (352, 61994), (446, 48928), (556, 39248), (704, 30997), (892, 24464), (1112, 19624), (1529, 14272), (1784, 12232), (2224, 9812), (2453, 8896), (3058, 7136), (3568, 6116), (4448, 4906)]