21367148

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{131}}^1\times {\mathrm{337}}^1$

素因数の和:494

約数の個数: 36

約数和(自身を含む): 41537496

約数和(自身を除く): 20170348

約数列:

[1, 2, 4, 11, 22, 44, 121, 131, 242, 262, 337, 484, 524, 674, 1348, 1441, 2882, 3707, 5764, 7414, 14828, 15851, 31702, 40777, 44147, 63404, 81554, 88294, 163108, 176588, 485617, 971234, 1942468, 5341787, 10683574, 21367148]

約数ペア:

[(1, 21367148), (2, 10683574), (4, 5341787), (11, 1942468), (22, 971234), (44, 485617), (121, 176588), (131, 163108), (242, 88294), (262, 81554), (337, 63404), (484, 44147), (524, 40777), (674, 31702), (1348, 15851), (1441, 14828), (2882, 7414), (3707, 5764)]