21515508

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{12197}}^1$

素因数の和:12221

約数の個数: 54

約数和(自身を含む): 63271026

約数和(自身を除く): 41755518

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 441, 588, 882, 1764, 12197, 24394, 36591, 48788, 73182, 85379, 109773, 146364, 170758, 219546, 256137, 341516, 439092, 512274, 597653, 768411, 1024548, 1195306, 1536822, 1792959, 2390612, 3073644, 3585918, 5378877, 7171836, 10757754, 21515508]

約数ペア:

[(1, 21515508), (2, 10757754), (3, 7171836), (4, 5378877), (6, 3585918), (7, 3073644), (9, 2390612), (12, 1792959), (14, 1536822), (18, 1195306), (21, 1024548), (28, 768411), (36, 597653), (42, 512274), (49, 439092), (63, 341516), (84, 256137), (98, 219546), (126, 170758), (147, 146364), (196, 109773), (252, 85379), (294, 73182), (441, 48788), (588, 36591), (882, 24394), (1764, 12197)]