20447559

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{433}}^1$

素因数の和:509

約数の個数: 40

約数和(自身を含む): 34029072

約数和(自身を除く): 13581513

約数列:

[1, 3, 9, 11, 27, 33, 53, 81, 99, 159, 297, 433, 477, 583, 891, 1299, 1431, 1749, 3897, 4293, 4763, 5247, 11691, 14289, 15741, 22949, 35073, 42867, 47223, 68847, 128601, 206541, 252439, 385803, 619623, 757317, 1858869, 2271951, 6815853, 20447559]

約数ペア:

[(1, 20447559), (3, 6815853), (9, 2271951), (11, 1858869), (27, 757317), (33, 619623), (53, 385803), (81, 252439), (99, 206541), (159, 128601), (297, 68847), (433, 47223), (477, 42867), (583, 35073), (891, 22949), (1299, 15741), (1431, 14289), (1749, 11691), (3897, 5247), (4293, 4763)]