21439136

素因数分解:

$2^5\times {\mathrm{53}}^1\times {\mathrm{12641}}^1$

素因数の和:12704

約数の個数: 24

約数和(自身を含む): 43008084

約数和(自身を除く): 21568948

約数列:

[1, 2, 4, 8, 16, 32, 53, 106, 212, 424, 848, 1696, 12641, 25282, 50564, 101128, 202256, 404512, 669973, 1339946, 2679892, 5359784, 10719568, 21439136]

約数ペア:

[(1, 21439136), (2, 10719568), (4, 5359784), (8, 2679892), (16, 1339946), (32, 669973), (53, 404512), (106, 202256), (212, 101128), (424, 50564), (848, 25282), (1696, 12641)]