21697143

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{509}}^1\times {\mathrm{1093}}^1$

素因数の和:1618

約数の個数: 16

約数和(自身を含む): 31244640

約数和(自身を除く): 9547497

約数列:

[1, 3, 13, 39, 509, 1093, 1527, 3279, 6617, 14209, 19851, 42627, 556337, 1669011, 7232381, 21697143]

約数ペア:

[(1, 21697143), (3, 7232381), (13, 1669011), (39, 556337), (509, 42627), (1093, 19851), (1527, 14209), (3279, 6617)]