21175264

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1399}}^1$

素因数の和:1463

約数の個数: 48

約数和(自身を含む): 46569600

約数和(自身を除く): 25394336

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 43, 44, 86, 88, 172, 176, 344, 352, 473, 688, 946, 1376, 1399, 1892, 2798, 3784, 5596, 7568, 11192, 15136, 15389, 22384, 30778, 44768, 60157, 61556, 120314, 123112, 240628, 246224, 481256, 492448, 661727, 962512, 1323454, 1925024, 2646908, 5293816, 10587632, 21175264]

約数ペア:

[(1, 21175264), (2, 10587632), (4, 5293816), (8, 2646908), (11, 1925024), (16, 1323454), (22, 962512), (32, 661727), (43, 492448), (44, 481256), (86, 246224), (88, 240628), (172, 123112), (176, 120314), (344, 61556), (352, 60157), (473, 44768), (688, 30778), (946, 22384), (1376, 15389), (1399, 15136), (1892, 11192), (2798, 7568), (3784, 5596)]