3138021

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{2039}}^1$

素因数の和:2070

約数の個数: 20

約数和(自身を含む): 4936800

約数和(自身を除く): 1798779

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 2039, 6117, 18351, 38741, 55053, 116223, 165159, 348669, 1046007, 3138021]

約数ペア:

[(1, 3138021), (3, 1046007), (9, 348669), (19, 165159), (27, 116223), (57, 55053), (81, 38741), (171, 18351), (513, 6117), (1539, 2039)]