21040011

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{3001}}^1$

素因数の和:3067

約数の個数: 24

約数和(自身を含む): 32781840

約数和(自身を除く): 11741829

約数列:

[1, 3, 9, 19, 41, 57, 123, 171, 369, 779, 2337, 3001, 7011, 9003, 27009, 57019, 123041, 171057, 369123, 513171, 1107369, 2337779, 7013337, 21040011]

約数ペア:

[(1, 21040011), (3, 7013337), (9, 2337779), (19, 1107369), (41, 513171), (57, 369123), (123, 171057), (171, 123041), (369, 57019), (779, 27009), (2337, 9003), (3001, 7011)]