20358968

素因数分解:

$2^3\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1723}}^1$

素因数の和:1947

約数の個数: 32

約数和(自身を含む): 43858560

約数和(自身を除く): 23499592

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 211, 422, 844, 1477, 1688, 1723, 2954, 3446, 5908, 6892, 11816, 12061, 13784, 24122, 48244, 96488, 363553, 727106, 1454212, 2544871, 2908424, 5089742, 10179484, 20358968]

約数ペア:

[(1, 20358968), (2, 10179484), (4, 5089742), (7, 2908424), (8, 2544871), (14, 1454212), (28, 727106), (56, 363553), (211, 96488), (422, 48244), (844, 24122), (1477, 13784), (1688, 12061), (1723, 11816), (2954, 6892), (3446, 5908)]