21699568

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{887}}^1$

素因数の和:1045

約数の個数: 40

約数和(自身を含む): 46247040

約数和(自身を除く): 24547472

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 139, 176, 278, 556, 887, 1112, 1529, 1774, 2224, 3058, 3548, 6116, 7096, 9757, 12232, 14192, 19514, 24464, 39028, 78056, 123293, 156112, 246586, 493172, 986344, 1356223, 1972688, 2712446, 5424892, 10849784, 21699568]

約数ペア:

[(1, 21699568), (2, 10849784), (4, 5424892), (8, 2712446), (11, 1972688), (16, 1356223), (22, 986344), (44, 493172), (88, 246586), (139, 156112), (176, 123293), (278, 78056), (556, 39028), (887, 24464), (1112, 19514), (1529, 14192), (1774, 12232), (2224, 9757), (3058, 7096), (3548, 6116)]