20790826

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1663}}^1$

素因数の和:1738

約数の個数: 32

約数和(自身を含む): 38338560

約数和(自身を除く): 17547734

約数列:

[1, 2, 7, 14, 19, 38, 47, 94, 133, 266, 329, 658, 893, 1663, 1786, 3326, 6251, 11641, 12502, 23282, 31597, 63194, 78161, 156322, 221179, 442358, 547127, 1094254, 1485059, 2970118, 10395413, 20790826]

約数ペア:

[(1, 20790826), (2, 10395413), (7, 2970118), (14, 1485059), (19, 1094254), (38, 547127), (47, 442358), (94, 221179), (133, 156322), (266, 78161), (329, 63194), (658, 31597), (893, 23282), (1663, 12502), (1786, 11641), (3326, 6251)]