20987032

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{3359}}^1$

素因数の和:3447

約数の個数: 32

約数和(自身を含む): 43545600

約数和(自身を除く): 22558568

約数列:

[1, 2, 4, 8, 11, 22, 44, 71, 88, 142, 284, 568, 781, 1562, 3124, 3359, 6248, 6718, 13436, 26872, 36949, 73898, 147796, 238489, 295592, 476978, 953956, 1907912, 2623379, 5246758, 10493516, 20987032]

約数ペア:

[(1, 20987032), (2, 10493516), (4, 5246758), (8, 2623379), (11, 1907912), (22, 953956), (44, 476978), (71, 295592), (88, 238489), (142, 147796), (284, 73898), (568, 36949), (781, 26872), (1562, 13436), (3124, 6718), (3359, 6248)]