81510291

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{2389}}^1$

素因数の和:2635

約数の個数: 24

約数和(自身を含む): 125274240

約数和(自身を除く): 43763949

約数列:

[1, 3, 9, 17, 51, 153, 223, 669, 2007, 2389, 3791, 7167, 11373, 21501, 34119, 40613, 121839, 365517, 532747, 1598241, 4794723, 9056699, 27170097, 81510291]

約数ペア:

[(1, 81510291), (3, 27170097), (9, 9056699), (17, 4794723), (51, 1598241), (153, 532747), (223, 365517), (669, 121839), (2007, 40613), (2389, 34119), (3791, 21501), (7167, 11373)]