1288989

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{479}}^1$

素因数の和:521

約数の個数: 24

約数和(自身を含む): 2096640

約数和(自身を除く): 807651

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 207, 299, 479, 897, 1437, 2691, 4311, 6227, 11017, 18681, 33051, 56043, 99153, 143221, 429663, 1288989]

約数ペア:

[(1, 1288989), (3, 429663), (9, 143221), (13, 99153), (23, 56043), (39, 33051), (69, 18681), (117, 11017), (207, 6227), (299, 4311), (479, 2691), (897, 1437)]