21522193

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{313}}^1$

素因数の和:397

約数の個数: 32

約数和(自身を含む): 28938240

約数和(自身を除く): 7416047

約数列:

[1, 7, 11, 19, 47, 77, 133, 209, 313, 329, 517, 893, 1463, 2191, 3443, 3619, 5947, 6251, 9823, 14711, 24101, 41629, 65417, 68761, 102977, 161821, 279509, 457919, 1132747, 1956563, 3074599, 21522193]

約数ペア:

[(1, 21522193), (7, 3074599), (11, 1956563), (19, 1132747), (47, 457919), (77, 279509), (133, 161821), (209, 102977), (313, 68761), (329, 65417), (517, 41629), (893, 24101), (1463, 14711), (2191, 9823), (3443, 6251), (3619, 5947)]