21090931

素因数分解:

${\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1$

素因数の和:243

約数の個数: 24

約数和(自身を含む): 24756480

約数和(自身を除く): 3665549

約数列:

[1, 17, 19, 23, 167, 289, 323, 391, 437, 2839, 3173, 3841, 5491, 6647, 7429, 48263, 53941, 65297, 72979, 126293, 916997, 1110049, 1240643, 21090931]

約数ペア:

[(1, 21090931), (17, 1240643), (19, 1110049), (23, 916997), (167, 126293), (289, 72979), (323, 65297), (391, 53941), (437, 48263), (2839, 7429), (3173, 6647), (3841, 5491)]