21511288

素因数分解:

$2^3\times {\mathrm{67}}^2\times {\mathrm{599}}^1$

素因数の和:739

約数の個数: 24

約数和(自身を含む): 41013000

約数和(自身を除く): 19501712

約数列:

[1, 2, 4, 8, 67, 134, 268, 536, 599, 1198, 2396, 4489, 4792, 8978, 17956, 35912, 40133, 80266, 160532, 321064, 2688911, 5377822, 10755644, 21511288]

約数ペア:

[(1, 21511288), (2, 10755644), (4, 5377822), (8, 2688911), (67, 321064), (134, 160532), (268, 80266), (536, 40133), (599, 35912), (1198, 17956), (2396, 8978), (4489, 4792)]