21700731

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{9431}}^1$

素因数の和:9506

約数の個数: 16

約数和(自身を含む): 31691520

約数和(自身を除く): 9990789

約数列:

[1, 3, 13, 39, 59, 177, 767, 2301, 9431, 28293, 122603, 367809, 556429, 1669287, 7233577, 21700731]

約数ペア:

[(1, 21700731), (3, 7233577), (13, 1669287), (39, 556429), (59, 367809), (177, 122603), (767, 28293), (2301, 9431)]