19669902

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^2$

素因数の和:345

約数の個数: 48

約数和(自身を含む): 47629440

約数和(自身を除く): 27959538

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 157, 266, 314, 399, 471, 798, 942, 1099, 2198, 2983, 3297, 5966, 6594, 8949, 17898, 20881, 24649, 41762, 49298, 62643, 73947, 125286, 147894, 172543, 345086, 468331, 517629, 936662, 1035258, 1404993, 2809986, 3278317, 6556634, 9834951, 19669902]

約数ペア:

[(1, 19669902), (2, 9834951), (3, 6556634), (6, 3278317), (7, 2809986), (14, 1404993), (19, 1035258), (21, 936662), (38, 517629), (42, 468331), (57, 345086), (114, 172543), (133, 147894), (157, 125286), (266, 73947), (314, 62643), (399, 49298), (471, 41762), (798, 24649), (942, 20881), (1099, 17898), (2198, 8949), (2983, 6594), (3297, 5966)]