21079269

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{311}}^1\times {\mathrm{443}}^1$

素因数の和:777

約数の個数: 24

約数和(自身を含む): 32415552

約数和(自身を除く): 11336283

約数列:

[1, 3, 9, 17, 51, 153, 311, 443, 933, 1329, 2799, 3987, 5287, 7531, 15861, 22593, 47583, 67779, 137773, 413319, 1239957, 2342141, 7026423, 21079269]

約数ペア:

[(1, 21079269), (3, 7026423), (9, 2342141), (17, 1239957), (51, 413319), (153, 137773), (311, 67779), (443, 47583), (933, 22593), (1329, 15861), (2799, 7531), (3987, 5287)]