20899611

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{433}}^1$

素因数の和:643

約数の個数: 24

約数和(自身を含む): 31414656

約数和(自身を除く): 10515045

約数列:

[1, 3, 9, 31, 93, 173, 279, 433, 519, 1299, 1557, 3897, 5363, 13423, 16089, 40269, 48267, 74909, 120807, 224727, 674181, 2322179, 6966537, 20899611]

約数ペア:

[(1, 20899611), (3, 6966537), (9, 2322179), (31, 674181), (93, 224727), (173, 120807), (279, 74909), (433, 48267), (519, 40269), (1299, 16089), (1557, 13423), (3897, 5363)]