19995184

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{1103}}^1$

素因数の和:1225

約数の個数: 40

約数和(自身を含む): 42711552

約数和(自身を除く): 22716368

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 103, 176, 206, 412, 824, 1103, 1133, 1648, 2206, 2266, 4412, 4532, 8824, 9064, 12133, 17648, 18128, 24266, 48532, 97064, 113609, 194128, 227218, 454436, 908872, 1249699, 1817744, 2499398, 4998796, 9997592, 19995184]

約数ペア:

[(1, 19995184), (2, 9997592), (4, 4998796), (8, 2499398), (11, 1817744), (16, 1249699), (22, 908872), (44, 454436), (88, 227218), (103, 194128), (176, 113609), (206, 97064), (412, 48532), (824, 24266), (1103, 18128), (1133, 17648), (1648, 12133), (2206, 9064), (2266, 8824), (4412, 4532)]