20079171

素因数分解:

$3^4\times 7^2\times {\mathrm{5059}}^1$

素因数の和:5085

約数の個数: 30

約数和(自身を含む): 34898820

約数和(自身を除く): 14819649

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 5059, 15177, 35413, 45531, 106239, 136593, 247891, 318717, 409779, 743673, 956151, 2231019, 2868453, 6693057, 20079171]

約数ペア:

[(1, 20079171), (3, 6693057), (7, 2868453), (9, 2231019), (21, 956151), (27, 743673), (49, 409779), (63, 318717), (81, 247891), (147, 136593), (189, 106239), (441, 45531), (567, 35413), (1323, 15177), (3969, 5059)]