20994788

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{313}}^1\times {\mathrm{409}}^1$

素因数の和:767

約数の個数: 24

約数和(自身を含む): 37849560

約数和(自身を除く): 16854772

約数列:

[1, 2, 4, 41, 82, 164, 313, 409, 626, 818, 1252, 1636, 12833, 16769, 25666, 33538, 51332, 67076, 128017, 256034, 512068, 5248697, 10497394, 20994788]

約数ペア:

[(1, 20994788), (2, 10497394), (4, 5248697), (41, 512068), (82, 256034), (164, 128017), (313, 67076), (409, 51332), (626, 33538), (818, 25666), (1252, 16769), (1636, 12833)]