81189171

素因数分解:

$3^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{5779}}^1$

素因数の和:6015

約数の個数: 24

約数和(自身を含む): 134650880

約数和(自身を除く): 53461709

約数列:

[1, 3, 7, 9, 21, 63, 223, 669, 1561, 2007, 4683, 5779, 14049, 17337, 40453, 52011, 121359, 364077, 1288717, 3866151, 9021019, 11598453, 27063057, 81189171]

約数ペア:

[(1, 81189171), (3, 27063057), (7, 11598453), (9, 9021019), (21, 3866151), (63, 1288717), (223, 364077), (669, 121359), (1561, 52011), (2007, 40453), (4683, 17337), (5779, 14049)]