21047028

素因数分解:

$2^2\times 3^1\times {\mathrm{109}}^1\times {\mathrm{16091}}^1$

素因数の和:16207

約数の個数: 24

約数和(自身を含む): 49563360

約数和(自身を除く): 28516332

約数列:

[1, 2, 3, 4, 6, 12, 109, 218, 327, 436, 654, 1308, 16091, 32182, 48273, 64364, 96546, 193092, 1753919, 3507838, 5261757, 7015676, 10523514, 21047028]

約数ペア:

[(1, 21047028), (2, 10523514), (3, 7015676), (4, 5261757), (6, 3507838), (12, 1753919), (109, 193092), (218, 96546), (327, 64364), (436, 48273), (654, 32182), (1308, 16091)]