20706867

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{229}}^1$

素因数の和:452

約数の個数: 32

約数和(自身を含む): 32788800

約数和(自身を除く): 12081933

約数列:

[1, 3, 9, 17, 27, 51, 153, 197, 229, 459, 591, 687, 1773, 2061, 3349, 3893, 5319, 6183, 10047, 11679, 30141, 35037, 45113, 90423, 105111, 135339, 406017, 766921, 1218051, 2300763, 6902289, 20706867]

約数ペア:

[(1, 20706867), (3, 6902289), (9, 2300763), (17, 1218051), (27, 766921), (51, 406017), (153, 135339), (197, 105111), (229, 90423), (459, 45113), (591, 35037), (687, 30141), (1773, 11679), (2061, 10047), (3349, 6183), (3893, 5319)]