21573783

素因数分解:

$3^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1153}}^1$

素因数の和:1186

約数の個数: 48

約数和(自身を含む): 40325376

約数和(自身を除く): 18751593

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 81, 99, 189, 231, 243, 297, 567, 693, 891, 1153, 1701, 2079, 2673, 3459, 6237, 8071, 10377, 12683, 18711, 24213, 31131, 38049, 72639, 88781, 93393, 114147, 217917, 266343, 280179, 342441, 653751, 799029, 1027323, 1961253, 2397087, 3081969, 7191261, 21573783]

約数ペア:

[(1, 21573783), (3, 7191261), (7, 3081969), (9, 2397087), (11, 1961253), (21, 1027323), (27, 799029), (33, 653751), (63, 342441), (77, 280179), (81, 266343), (99, 217917), (189, 114147), (231, 93393), (243, 88781), (297, 72639), (567, 38049), (693, 31131), (891, 24213), (1153, 18711), (1701, 12683), (2079, 10377), (2673, 8071), (3459, 6237)]