19691097

素因数分解:

$3^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1\times {\mathrm{431}}^1$

素因数の和:688

約数の個数: 16

約数和(自身を含む): 26756352

約数和(自身を除く): 7065255

約数列:

[1, 3, 97, 157, 291, 431, 471, 1293, 15229, 41807, 45687, 67667, 125421, 203001, 6563699, 19691097]

約数ペア:

[(1, 19691097), (3, 6563699), (97, 203001), (157, 125421), (291, 67667), (431, 45687), (471, 41807), (1293, 15229)]