16881291

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1567}}^1$

素因数の和:1605

約数の個数: 40

約数和(自身を含む): 30356480

約数和(自身を除く): 13475189

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 171, 189, 399, 513, 567, 1197, 1539, 1567, 3591, 4701, 10773, 10969, 14103, 29773, 32907, 42309, 89319, 98721, 126927, 208411, 267957, 296163, 625233, 803871, 888489, 1875699, 2411613, 5627097, 16881291]

約数ペア:

[(1, 16881291), (3, 5627097), (7, 2411613), (9, 1875699), (19, 888489), (21, 803871), (27, 625233), (57, 296163), (63, 267957), (81, 208411), (133, 126927), (171, 98721), (189, 89319), (399, 42309), (513, 32907), (567, 29773), (1197, 14103), (1539, 10969), (1567, 10773), (3591, 4701)]