20007897

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{883}}^1$

素因数の和:989

約数の個数: 32

約数和(自身を含む): 33266688

約数和(自身を除く): 13258791

約数列:

[1, 3, 7, 13, 21, 39, 83, 91, 249, 273, 581, 883, 1079, 1743, 2649, 3237, 6181, 7553, 11479, 18543, 22659, 34437, 73289, 80353, 219867, 241059, 513023, 952757, 1539069, 2858271, 6669299, 20007897]

約数ペア:

[(1, 20007897), (3, 6669299), (7, 2858271), (13, 1539069), (21, 952757), (39, 513023), (83, 241059), (91, 219867), (249, 80353), (273, 73289), (581, 34437), (883, 22659), (1079, 18543), (1743, 11479), (2649, 7553), (3237, 6181)]