20920878

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{673}}^1$

素因数の和:849

約数の個数: 48

約数和(自身を含む): 49838256

約数和(自身を除く): 28917378

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 157, 198, 314, 471, 673, 942, 1346, 1413, 1727, 2019, 2826, 3454, 4038, 5181, 6057, 7403, 10362, 12114, 14806, 15543, 22209, 31086, 44418, 66627, 105661, 133254, 211322, 316983, 633966, 950949, 1162271, 1901898, 2324542, 3486813, 6973626, 10460439, 20920878]

約数ペア:

[(1, 20920878), (2, 10460439), (3, 6973626), (6, 3486813), (9, 2324542), (11, 1901898), (18, 1162271), (22, 950949), (33, 633966), (66, 316983), (99, 211322), (157, 133254), (198, 105661), (314, 66627), (471, 44418), (673, 31086), (942, 22209), (1346, 15543), (1413, 14806), (1727, 12114), (2019, 10362), (2826, 7403), (3454, 6057), (4038, 5181)]