21295197

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{10243}}^1$

素因数の和:10270

約数の個数: 32

約数和(自身を含む): 39336960

約数和(自身を除く): 18041763

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 189, 231, 297, 693, 2079, 10243, 30729, 71701, 92187, 112673, 215103, 276561, 338019, 645309, 788711, 1014057, 1935927, 2366133, 3042171, 7098399, 21295197]

約数ペア:

[(1, 21295197), (3, 7098399), (7, 3042171), (9, 2366133), (11, 1935927), (21, 1014057), (27, 788711), (33, 645309), (63, 338019), (77, 276561), (99, 215103), (189, 112673), (231, 92187), (297, 71701), (693, 30729), (2079, 10243)]