20541357

素因数分解:

$3^4\times {\mathrm{367}}^1\times {\mathrm{691}}^1$

素因数の和:1070

約数の個数: 20

約数和(自身を含む): 30813376

約数和(自身を除く): 10272019

約数列:

[1, 3, 9, 27, 81, 367, 691, 1101, 2073, 3303, 6219, 9909, 18657, 29727, 55971, 253597, 760791, 2282373, 6847119, 20541357]

約数ペア:

[(1, 20541357), (3, 6847119), (9, 2282373), (27, 760791), (81, 253597), (367, 55971), (691, 29727), (1101, 18657), (2073, 9909), (3303, 6219)]