20791288

素因数分解:

$2^3\times 7^3\times {\mathrm{7577}}^1$

素因数の和:7604

約数の個数: 32

約数和(自身を含む): 45468000

約数和(自身を除く): 24676712

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 686, 1372, 2744, 7577, 15154, 30308, 53039, 60616, 106078, 212156, 371273, 424312, 742546, 1485092, 2598911, 2970184, 5197822, 10395644, 20791288]

約数ペア:

[(1, 20791288), (2, 10395644), (4, 5197822), (7, 2970184), (8, 2598911), (14, 1485092), (28, 742546), (49, 424312), (56, 371273), (98, 212156), (196, 106078), (343, 60616), (392, 53039), (686, 30308), (1372, 15154), (2744, 7577)]