21256928

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8627}}^1$

素因数の和:8655

約数の個数: 48

約数和(自身を含む): 52182144

約数和(自身を除く): 30925216

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 77, 88, 112, 154, 176, 224, 308, 352, 616, 1232, 2464, 8627, 17254, 34508, 60389, 69016, 94897, 120778, 138032, 189794, 241556, 276064, 379588, 483112, 664279, 759176, 966224, 1328558, 1518352, 1932448, 2657116, 3036704, 5314232, 10628464, 21256928]

約数ペア:

[(1, 21256928), (2, 10628464), (4, 5314232), (7, 3036704), (8, 2657116), (11, 1932448), (14, 1518352), (16, 1328558), (22, 966224), (28, 759176), (32, 664279), (44, 483112), (56, 379588), (77, 276064), (88, 241556), (112, 189794), (154, 138032), (176, 120778), (224, 94897), (308, 69016), (352, 60389), (616, 34508), (1232, 17254), (2464, 8627)]