28399665

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{38639}}^1$

素因数の和:38661

約数の個数: 24

約数和(自身を含む): 52859520

約数和(自身を除く): 24459855

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 38639, 115917, 193195, 270473, 579585, 811419, 1352365, 1893311, 4057095, 5679933, 9466555, 28399665]

約数ペア:

[(1, 28399665), (3, 9466555), (5, 5679933), (7, 4057095), (15, 1893311), (21, 1352365), (35, 811419), (49, 579585), (105, 270473), (147, 193195), (245, 115917), (735, 38639)]