21968672

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{449}}^1$

素因数の和:609

約数の個数: 48

約数和(自身を含む): 47628000

約数和(自身を除く): 25659328

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 139, 176, 278, 352, 449, 556, 898, 1112, 1529, 1796, 2224, 3058, 3592, 4448, 4939, 6116, 7184, 9878, 12232, 14368, 19756, 24464, 39512, 48928, 62411, 79024, 124822, 158048, 249644, 499288, 686521, 998576, 1373042, 1997152, 2746084, 5492168, 10984336, 21968672]

約数ペア:

[(1, 21968672), (2, 10984336), (4, 5492168), (8, 2746084), (11, 1997152), (16, 1373042), (22, 998576), (32, 686521), (44, 499288), (88, 249644), (139, 158048), (176, 124822), (278, 79024), (352, 62411), (449, 48928), (556, 39512), (898, 24464), (1112, 19756), (1529, 14368), (1796, 12232), (2224, 9878), (3058, 7184), (3592, 6116), (4448, 4939)]