21129920

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{9433}}^1$

素因数の和:9457

約数の個数: 56

約数和(自身を含む): 57509664

約数和(自身を除く): 36379744

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 9433, 18866, 37732, 47165, 66031, 75464, 94330, 132062, 150928, 188660, 264124, 301856, 330155, 377320, 528248, 603712, 660310, 754640, 1056496, 1320620, 1509280, 2112992, 2641240, 3018560, 4225984, 5282480, 10564960, 21129920]

約数ペア:

[(1, 21129920), (2, 10564960), (4, 5282480), (5, 4225984), (7, 3018560), (8, 2641240), (10, 2112992), (14, 1509280), (16, 1320620), (20, 1056496), (28, 754640), (32, 660310), (35, 603712), (40, 528248), (56, 377320), (64, 330155), (70, 301856), (80, 264124), (112, 188660), (140, 150928), (160, 132062), (224, 94330), (280, 75464), (320, 66031), (448, 47165), (560, 37732), (1120, 18866), (2240, 9433)]