20188539

素因数分解:

$3^2\times 7^2\times {\mathrm{45779}}^1$

素因数の和:45799

約数の個数: 18

約数和(自身を含む): 33922980

約数和(自身を除く): 13734441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 45779, 137337, 320453, 412011, 961359, 2243171, 2884077, 6729513, 20188539]

約数ペア:

[(1, 20188539), (3, 6729513), (7, 2884077), (9, 2243171), (21, 961359), (49, 412011), (63, 320453), (147, 137337), (441, 45779)]