1247001021

素因数分解:

$3^3\times 7^1\times {\mathrm{6597889}}^1$

素因数の和:6597905

約数の個数: 16

約数和(自身を含む): 2111324800

約数和(自身を除く): 864323779

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 6597889, 19793667, 46185223, 59381001, 138555669, 178143003, 415667007, 1247001021]

約数ペア:

[(1, 1247001021), (3, 415667007), (7, 178143003), (9, 138555669), (21, 59381001), (27, 46185223), (63, 19793667), (189, 6597889)]