18786218

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{149}}^1\times {\mathrm{521}}^1$

素因数の和:694

約数の個数: 24

約数和(自身を含む): 31241700

約数和(自身を除く): 12455482

約数列:

[1, 2, 11, 22, 121, 149, 242, 298, 521, 1042, 1639, 3278, 5731, 11462, 18029, 36058, 63041, 77629, 126082, 155258, 853919, 1707838, 9393109, 18786218]

約数ペア:

[(1, 18786218), (2, 9393109), (11, 1707838), (22, 853919), (121, 155258), (149, 126082), (242, 77629), (298, 63041), (521, 36058), (1042, 18029), (1639, 11462), (3278, 5731)]