9917991

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{15971}}^1$

素因数の和:16003

約数の個数: 16

約数和(自身を含む): 15333120

約数和(自身を除く): 5415129

約数列:

[1, 3, 9, 23, 27, 69, 207, 621, 15971, 47913, 143739, 367333, 431217, 1101999, 3305997, 9917991]

約数ペア:

[(1, 9917991), (3, 3305997), (9, 1101999), (23, 431217), (27, 367333), (69, 143739), (207, 47913), (621, 15971)]