21059164

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{17491}}^1$

素因数の和:17545

約数の個数: 24

約数和(自身を含む): 43100288

約数和(自身を除く): 22041124

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 17491, 34982, 69964, 122437, 244874, 489748, 752113, 1504226, 3008452, 5264791, 10529582, 21059164]

約数ペア:

[(1, 21059164), (2, 10529582), (4, 5264791), (7, 3008452), (14, 1504226), (28, 752113), (43, 489748), (86, 244874), (172, 122437), (301, 69964), (602, 34982), (1204, 17491)]