18737421

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{1277}}^1$

素因数の和:1420

約数の個数: 16

約数和(自身を含む): 25723584

約数和(自身を除く): 6986163

約数列:

[1, 3, 67, 73, 201, 219, 1277, 3831, 4891, 14673, 85559, 93221, 256677, 279663, 6245807, 18737421]

約数ペア:

[(1, 18737421), (3, 6245807), (67, 279663), (73, 256677), (201, 93221), (219, 85559), (1277, 14673), (3831, 4891)]