20019657

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{463}}^1$

素因数の和:573

約数の個数: 32

約数和(自身を含む): 32071680

約数和(自身を除く): 12052023

約数列:

[1, 3, 7, 21, 29, 71, 87, 203, 213, 463, 497, 609, 1389, 1491, 2059, 3241, 6177, 9723, 13427, 14413, 32873, 40281, 43239, 93989, 98619, 230111, 281967, 690333, 953317, 2859951, 6673219, 20019657]

約数ペア:

[(1, 20019657), (3, 6673219), (7, 2859951), (21, 953317), (29, 690333), (71, 281967), (87, 230111), (203, 98619), (213, 93989), (463, 43239), (497, 40281), (609, 32873), (1389, 14413), (1491, 13427), (2059, 9723), (3241, 6177)]