21570858

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{449}}^1$

素因数の和:631

約数の個数: 48

約数和(自身を含む): 49912200

約数和(自身を除く): 28341342

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 157, 306, 314, 449, 471, 898, 942, 1347, 1413, 2669, 2694, 2826, 4041, 5338, 7633, 8007, 8082, 15266, 16014, 22899, 24021, 45798, 48042, 68697, 70493, 137394, 140986, 211479, 422958, 634437, 1198381, 1268874, 2396762, 3595143, 7190286, 10785429, 21570858]

約数ペア:

[(1, 21570858), (2, 10785429), (3, 7190286), (6, 3595143), (9, 2396762), (17, 1268874), (18, 1198381), (34, 634437), (51, 422958), (102, 211479), (153, 140986), (157, 137394), (306, 70493), (314, 68697), (449, 48042), (471, 45798), (898, 24021), (942, 22899), (1347, 16014), (1413, 15266), (2669, 8082), (2694, 8007), (2826, 7633), (4041, 5338)]