28216617

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:170

約数の個数: 64

約数和(自身を含む): 48335616

約数和(自身を除く): 20118999

約数列:

[1, 3, 11, 13, 17, 33, 39, 51, 53, 73, 143, 159, 187, 219, 221, 429, 561, 583, 663, 689, 803, 901, 949, 1241, 1749, 2067, 2409, 2431, 2703, 2847, 3723, 3869, 7293, 7579, 9911, 10439, 11607, 11713, 13651, 16133, 22737, 29733, 31317, 35139, 40953, 42559, 48399, 50297, 65773, 127677, 128843, 150891, 177463, 197319, 386529, 532389, 553267, 723503, 855049, 1659801, 2170509, 2565147, 9405539, 28216617]

約数ペア:

[(1, 28216617), (3, 9405539), (11, 2565147), (13, 2170509), (17, 1659801), (33, 855049), (39, 723503), (51, 553267), (53, 532389), (73, 386529), (143, 197319), (159, 177463), (187, 150891), (219, 128843), (221, 127677), (429, 65773), (561, 50297), (583, 48399), (663, 42559), (689, 40953), (803, 35139), (901, 31317), (949, 29733), (1241, 22737), (1749, 16133), (2067, 13651), (2409, 11713), (2431, 11607), (2703, 10439), (2847, 9911), (3723, 7579), (3869, 7293)]