21879460

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{20641}}^1$

素因数の和:20703

約数の個数: 24

約数和(自身を含む): 46816056

約数和(自身を除く): 24936596

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 20641, 41282, 82564, 103205, 206410, 412820, 1093973, 2187946, 4375892, 5469865, 10939730, 21879460]

約数ペア:

[(1, 21879460), (2, 10939730), (4, 5469865), (5, 4375892), (10, 2187946), (20, 1093973), (53, 412820), (106, 206410), (212, 103205), (265, 82564), (530, 41282), (1060, 20641)]