21155987116

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{2949803}}^1$

素因数の和:2949981

約数の個数: 24

約数和(自身を含む): 40636499904

約数和(自身を除く): 19480512788

約数列:

[1, 2, 4, 11, 22, 44, 163, 326, 652, 1793, 3586, 7172, 2949803, 5899606, 11799212, 32447833, 64895666, 129791332, 480817889, 961635778, 1923271556, 5288996779, 10577993558, 21155987116]

約数ペア:

[(1, 21155987116), (2, 10577993558), (4, 5288996779), (11, 1923271556), (22, 961635778), (44, 480817889), (163, 129791332), (326, 64895666), (652, 32447833), (1793, 11799212), (3586, 5899606), (7172, 2949803)]