21876895

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{1049}}^1$

素因数の和:1194

約数の個数: 16

約数和(自身を含む): 27165600

約数和(自身を除く): 5288705

約数列:

[1, 5, 43, 97, 215, 485, 1049, 4171, 5245, 20855, 45107, 101753, 225535, 508765, 4375379, 21876895]

約数ペア:

[(1, 21876895), (5, 4375379), (43, 508765), (97, 225535), (215, 101753), (485, 45107), (1049, 20855), (4171, 5245)]