30871323

素因数分解:

$3^2\times 7^2\times {\mathrm{70003}}^1$

素因数の和:70023

約数の個数: 18

約数和(自身を含む): 51872964

約数和(自身を除く): 21001641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 70003, 210009, 490021, 630027, 1470063, 3430147, 4410189, 10290441, 30871323]

約数ペア:

[(1, 30871323), (3, 10290441), (7, 4410189), (9, 3430147), (21, 1470063), (49, 630027), (63, 490021), (147, 210009), (441, 70003)]