18508688

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{1021}}^1$

素因数の和:1143

約数の個数: 40

約数和(自身を含む): 39539136

約数和(自身を除く): 21030448

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 103, 176, 206, 412, 824, 1021, 1133, 1648, 2042, 2266, 4084, 4532, 8168, 9064, 11231, 16336, 18128, 22462, 44924, 89848, 105163, 179696, 210326, 420652, 841304, 1156793, 1682608, 2313586, 4627172, 9254344, 18508688]

約数ペア:

[(1, 18508688), (2, 9254344), (4, 4627172), (8, 2313586), (11, 1682608), (16, 1156793), (22, 841304), (44, 420652), (88, 210326), (103, 179696), (176, 105163), (206, 89848), (412, 44924), (824, 22462), (1021, 18128), (1133, 16336), (1648, 11231), (2042, 9064), (2266, 8168), (4084, 4532)]