20731304

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2647}}^1$

素因数の和:2753

約数の個数: 32

約数和(自身を含む): 42897600

約数和(自身を除く): 22166296

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 89, 178, 356, 712, 979, 1958, 2647, 3916, 5294, 7832, 10588, 21176, 29117, 58234, 116468, 232936, 235583, 471166, 942332, 1884664, 2591413, 5182826, 10365652, 20731304]

約数ペア:

[(1, 20731304), (2, 10365652), (4, 5182826), (8, 2591413), (11, 1884664), (22, 942332), (44, 471166), (88, 235583), (89, 232936), (178, 116468), (356, 58234), (712, 29117), (979, 21176), (1958, 10588), (2647, 7832), (3916, 5294)]