20121581643

素因数分解:

$3^1\times {\mathrm{89}}^2\times {\mathrm{641}}^1\times {\mathrm{1321}}^1$

素因数の和:2143

約数の個数: 24

約数和(自身を含む): 27196511856

約数和(自身を除く): 7074930213

約数列:

[1, 3, 89, 267, 641, 1321, 1923, 3963, 7921, 23763, 57049, 117569, 171147, 352707, 846761, 2540283, 5077361, 10463641, 15232083, 31390923, 75361729, 226085187, 6707193881, 20121581643]

約数ペア:

[(1, 20121581643), (3, 6707193881), (89, 226085187), (267, 75361729), (641, 31390923), (1321, 15232083), (1923, 10463641), (3963, 5077361), (7921, 2540283), (23763, 846761), (57049, 352707), (117569, 171147)]