18374121

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{11939}}^1$

素因数の和:11970

約数の個数: 20

約数和(自身を含む): 28894800

約数和(自身を除く): 10520679

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 11939, 35817, 107451, 226841, 322353, 680523, 967059, 2041569, 6124707, 18374121]

約数ペア:

[(1, 18374121), (3, 6124707), (9, 2041569), (19, 967059), (27, 680523), (57, 322353), (81, 226841), (171, 107451), (513, 35817), (1539, 11939)]