20565692

素因数分解:

$2^2\times 7^2\times {\mathrm{317}}^1\times {\mathrm{331}}^1$

素因数の和:666

約数の個数: 36

約数和(自身を含む): 42124824

約数和(自身を除く): 21559132

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 317, 331, 634, 662, 1268, 1324, 2219, 2317, 4438, 4634, 8876, 9268, 15533, 16219, 31066, 32438, 62132, 64876, 104927, 209854, 419708, 734489, 1468978, 2937956, 5141423, 10282846, 20565692]

約数ペア:

[(1, 20565692), (2, 10282846), (4, 5141423), (7, 2937956), (14, 1468978), (28, 734489), (49, 419708), (98, 209854), (196, 104927), (317, 64876), (331, 62132), (634, 32438), (662, 31066), (1268, 16219), (1324, 15533), (2219, 9268), (2317, 8876), (4438, 4634)]