21668013

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{47207}}^1$

素因数の和:47233

約数の個数: 16

約数和(自身を含む): 33989760

約数和(自身を除く): 12321747

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 47207, 141621, 424863, 802519, 1274589, 2407557, 7222671, 21668013]

約数ペア:

[(1, 21668013), (3, 7222671), (9, 2407557), (17, 1274589), (27, 802519), (51, 424863), (153, 141621), (459, 47207)]