21569916

素因数分解:

$2^2\times 3^1\times {\mathrm{107}}^2\times {\mathrm{157}}^1$

素因数の和:378

約数の個数: 36

約数和(自身を含む): 51128168

約数和(自身を除く): 29558252

約数列:

[1, 2, 3, 4, 6, 12, 107, 157, 214, 314, 321, 428, 471, 628, 642, 942, 1284, 1884, 11449, 16799, 22898, 33598, 34347, 45796, 50397, 67196, 68694, 100794, 137388, 201588, 1797493, 3594986, 5392479, 7189972, 10784958, 21569916]

約数ペア:

[(1, 21569916), (2, 10784958), (3, 7189972), (4, 5392479), (6, 3594986), (12, 1797493), (107, 201588), (157, 137388), (214, 100794), (314, 68694), (321, 67196), (428, 50397), (471, 45796), (628, 34347), (642, 33598), (942, 22898), (1284, 16799), (1884, 11449)]