21022113

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:154

約数の個数: 48

約数和(自身を含む): 35112960

約数和(自身を除く): 14090847

約数列:

[1, 3, 7, 19, 21, 47, 57, 59, 133, 141, 177, 329, 361, 399, 413, 893, 987, 1083, 1121, 1239, 2527, 2679, 2773, 3363, 6251, 7581, 7847, 8319, 16967, 18753, 19411, 21299, 23541, 50901, 52687, 58233, 63897, 118769, 149093, 158061, 356307, 368809, 447279, 1001053, 1106427, 3003159, 7007371, 21022113]

約数ペア:

[(1, 21022113), (3, 7007371), (7, 3003159), (19, 1106427), (21, 1001053), (47, 447279), (57, 368809), (59, 356307), (133, 158061), (141, 149093), (177, 118769), (329, 63897), (361, 58233), (399, 52687), (413, 50901), (893, 23541), (987, 21299), (1083, 19411), (1121, 18753), (1239, 16967), (2527, 8319), (2679, 7847), (2773, 7581), (3363, 6251)]