1521657981

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{479}}^1\times {\mathrm{769}}^1$

素因数の和:1280

約数の個数: 48

約数和(自身を含む): 2421619200

約数和(自身を除く): 899961219

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 243, 459, 479, 769, 1377, 1437, 2307, 4131, 4311, 6921, 8143, 12933, 13073, 20763, 24429, 38799, 39219, 62289, 73287, 116397, 117657, 186867, 219861, 352971, 368351, 659583, 1058913, 1105053, 1978749, 3176739, 3315159, 6261967, 9945477, 18785901, 29836431, 56357703, 89509293, 169073109, 507219327, 1521657981]

約数ペア:

[(1, 1521657981), (3, 507219327), (9, 169073109), (17, 89509293), (27, 56357703), (51, 29836431), (81, 18785901), (153, 9945477), (243, 6261967), (459, 3315159), (479, 3176739), (769, 1978749), (1377, 1105053), (1437, 1058913), (2307, 659583), (4131, 368351), (4311, 352971), (6921, 219861), (8143, 186867), (12933, 117657), (13073, 116397), (20763, 73287), (24429, 62289), (38799, 39219)]