31386789

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{21661}}^1$

素因数の和:21697

約数の個数: 24

約数和(自身を含む): 54068352

約数和(自身を除く): 22681563

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 21661, 64983, 151627, 194949, 454881, 498203, 1364643, 1494609, 3487421, 4483827, 10462263, 31386789]

約数ペア:

[(1, 31386789), (3, 10462263), (7, 4483827), (9, 3487421), (21, 1494609), (23, 1364643), (63, 498203), (69, 454881), (161, 194949), (207, 151627), (483, 64983), (1449, 21661)]