20321838

素因数分解:

$2^1\times 3^2\times {\mathrm{313}}^1\times {\mathrm{3607}}^1$

素因数の和:3928

約数の個数: 24

約数和(自身を含む): 44183568

約数和(自身を除く): 23861730

約数列:

[1, 2, 3, 6, 9, 18, 313, 626, 939, 1878, 2817, 3607, 5634, 7214, 10821, 21642, 32463, 64926, 1128991, 2257982, 3386973, 6773946, 10160919, 20321838]

約数ペア:

[(1, 20321838), (2, 10160919), (3, 6773946), (6, 3386973), (9, 2257982), (18, 1128991), (313, 64926), (626, 32463), (939, 21642), (1878, 10821), (2817, 7214), (3607, 5634)]