20581792

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8353}}^1$

素因数の和:8381

約数の個数: 48

約数和(自身を含む): 50524992

約数和(自身を除く): 29943200

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 77, 88, 112, 154, 176, 224, 308, 352, 616, 1232, 2464, 8353, 16706, 33412, 58471, 66824, 91883, 116942, 133648, 183766, 233884, 267296, 367532, 467768, 643181, 735064, 935536, 1286362, 1470128, 1871072, 2572724, 2940256, 5145448, 10290896, 20581792]

約数ペア:

[(1, 20581792), (2, 10290896), (4, 5145448), (7, 2940256), (8, 2572724), (11, 1871072), (14, 1470128), (16, 1286362), (22, 935536), (28, 735064), (32, 643181), (44, 467768), (56, 367532), (77, 267296), (88, 233884), (112, 183766), (154, 133648), (176, 116942), (224, 91883), (308, 66824), (352, 58471), (616, 33412), (1232, 16706), (2464, 8353)]