20710323

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{13457}}^1$

素因数の和:13488

約数の個数: 20

約数和(自身を含む): 32568360

約数和(自身を除く): 11858037

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 13457, 40371, 121113, 255683, 363339, 767049, 1090017, 2301147, 6903441, 20710323]

約数ペア:

[(1, 20710323), (3, 6903441), (9, 2301147), (19, 1090017), (27, 767049), (57, 363339), (81, 255683), (171, 121113), (513, 40371), (1539, 13457)]