20126788

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{7753}}^1$

素因数の和:7827

約数の個数: 24

約数和(自身を含む): 39080160

約数和(自身を除く): 18953372

約数列:

[1, 2, 4, 11, 22, 44, 59, 118, 236, 649, 1298, 2596, 7753, 15506, 31012, 85283, 170566, 341132, 457427, 914854, 1829708, 5031697, 10063394, 20126788]

約数ペア:

[(1, 20126788), (2, 10063394), (4, 5031697), (11, 1829708), (22, 914854), (44, 457427), (59, 341132), (118, 170566), (236, 85283), (649, 31012), (1298, 15506), (2596, 7753)]