20918692

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{229}}^1\times {\mathrm{557}}^1$

素因数の和:831

約数の個数: 24

約数和(自身を含む): 37731960

約数和(自身を除く): 16813268

約数列:

[1, 2, 4, 41, 82, 164, 229, 458, 557, 916, 1114, 2228, 9389, 18778, 22837, 37556, 45674, 91348, 127553, 255106, 510212, 5229673, 10459346, 20918692]

約数ペア:

[(1, 20918692), (2, 10459346), (4, 5229673), (41, 510212), (82, 255106), (164, 127553), (229, 91348), (458, 45674), (557, 37556), (916, 22837), (1114, 18778), (2228, 9389)]