20378019

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{463}}^1\times {\mathrm{863}}^1$

素因数の和:1346

約数の個数: 16

約数和(自身を含む): 28864512

約数和(自身を除く): 8486493

約数列:

[1, 3, 17, 51, 463, 863, 1389, 2589, 7871, 14671, 23613, 44013, 399569, 1198707, 6792673, 20378019]

約数ペア:

[(1, 20378019), (3, 6792673), (17, 1198707), (51, 399569), (463, 44013), (863, 23613), (1389, 14671), (2589, 7871)]