18879399

素因数分解:

$3^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1009}}^1$

素因数の和:1042

約数の個数: 48

約数和(自身を含む): 35293440

約数和(自身を除く): 16414041

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 81, 99, 189, 231, 243, 297, 567, 693, 891, 1009, 1701, 2079, 2673, 3027, 6237, 7063, 9081, 11099, 18711, 21189, 27243, 33297, 63567, 77693, 81729, 99891, 190701, 233079, 245187, 299673, 572103, 699237, 899019, 1716309, 2097711, 2697057, 6293133, 18879399]

約数ペア:

[(1, 18879399), (3, 6293133), (7, 2697057), (9, 2097711), (11, 1716309), (21, 899019), (27, 699237), (33, 572103), (63, 299673), (77, 245187), (81, 233079), (99, 190701), (189, 99891), (231, 81729), (243, 77693), (297, 63567), (567, 33297), (693, 27243), (891, 21189), (1009, 18711), (1701, 11099), (2079, 9081), (2673, 7063), (3027, 6237)]