21176936

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{131}}^1\times {\mathrm{167}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 44241120

約数和(自身を除く): 23064184

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 121, 131, 167, 242, 262, 334, 484, 524, 668, 968, 1048, 1336, 1441, 1837, 2882, 3674, 5764, 7348, 11528, 14696, 15851, 20207, 21877, 31702, 40414, 43754, 63404, 80828, 87508, 126808, 161656, 175016, 240647, 481294, 962588, 1925176, 2647117, 5294234, 10588468, 21176936]

約数ペア:

[(1, 21176936), (2, 10588468), (4, 5294234), (8, 2647117), (11, 1925176), (22, 962588), (44, 481294), (88, 240647), (121, 175016), (131, 161656), (167, 126808), (242, 87508), (262, 80828), (334, 63404), (484, 43754), (524, 40414), (668, 31702), (968, 21877), (1048, 20207), (1336, 15851), (1441, 14696), (1837, 11528), (2882, 7348), (3674, 5764)]