20738997

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{15061}}^1$

素因数の和:15090

約数の個数: 20

約数和(自身を含む): 32805036

約数和(自身を除く): 12066039

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 15061, 45183, 135549, 256037, 406647, 768111, 1219941, 2304333, 6912999, 20738997]

約数ペア:

[(1, 20738997), (3, 6912999), (9, 2304333), (17, 1219941), (27, 768111), (51, 406647), (81, 256037), (153, 135549), (459, 45183), (1377, 15061)]