21729417

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{8039}}^1$

素因数の和:8112

約数の個数: 16

約数和(自身を含む): 31259520

約数和(自身を除く): 9530103

約数列:

[1, 3, 17, 51, 53, 159, 901, 2703, 8039, 24117, 136663, 409989, 426067, 1278201, 7243139, 21729417]

約数ペア:

[(1, 21729417), (3, 7243139), (17, 1278201), (51, 426067), (53, 409989), (159, 136663), (901, 24117), (2703, 8039)]