19657479

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1\times {\mathrm{661}}^1$

素因数の和:1118

約数の個数: 16

約数和(自身を含む): 27454464

約数和(自身を除く): 7796985

約数列:

[1, 3, 23, 69, 431, 661, 1293, 1983, 9913, 15203, 29739, 45609, 284891, 854673, 6552493, 19657479]

約数ペア:

[(1, 19657479), (3, 6552493), (23, 854673), (69, 284891), (431, 45609), (661, 29739), (1293, 15203), (1983, 9913)]