20994057

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{11491}}^1$

素因数の和:11533

約数の個数: 24

約数和(自身を含む): 35855040

約数和(自身を除く): 14860983

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 11491, 34473, 80437, 103419, 241311, 333239, 723933, 999717, 2332673, 2999151, 6998019, 20994057]

約数ペア:

[(1, 20994057), (3, 6998019), (7, 2999151), (9, 2332673), (21, 999717), (29, 723933), (63, 333239), (87, 241311), (203, 103419), (261, 80437), (609, 34473), (1827, 11491)]