20120151891

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{13494401}}^1$

素因数の和:13494482

約数の個数: 16

約数和(自身を含む): 31091102208

約数和(自身を除く): 10970950317

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 13494401, 40483203, 94460807, 283382421, 958102471, 2874307413, 6706717297, 20120151891]

約数ペア:

[(1, 20120151891), (3, 6706717297), (7, 2874307413), (21, 958102471), (71, 283382421), (213, 94460807), (497, 40483203), (1491, 13494401)]