21316262

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{409}}^1$

素因数の和:548

約数の個数: 32

約数和(自身を含む): 36840960

約数和(自身を除く): 15524698

約数列:

[1, 2, 11, 22, 23, 46, 103, 206, 253, 409, 506, 818, 1133, 2266, 2369, 4499, 4738, 8998, 9407, 18814, 26059, 42127, 52118, 84254, 103477, 206954, 463397, 926794, 968921, 1937842, 10658131, 21316262]

約数ペア:

[(1, 21316262), (2, 10658131), (11, 1937842), (22, 968921), (23, 926794), (46, 463397), (103, 206954), (206, 103477), (253, 84254), (409, 52118), (506, 42127), (818, 26059), (1133, 18814), (2266, 9407), (2369, 8998), (4499, 4738)]