21564648

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{42787}}^1$

素因数の和:42806

約数の個数: 48

約数和(自身を含む): 66749280

約数和(自身を除く): 45184632

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 42787, 85574, 128361, 171148, 256722, 299509, 342296, 385083, 513444, 599018, 770166, 898527, 1026888, 1198036, 1540332, 1797054, 2396072, 2695581, 3080664, 3594108, 5391162, 7188216, 10782324, 21564648]

約数ペア:

[(1, 21564648), (2, 10782324), (3, 7188216), (4, 5391162), (6, 3594108), (7, 3080664), (8, 2695581), (9, 2396072), (12, 1797054), (14, 1540332), (18, 1198036), (21, 1026888), (24, 898527), (28, 770166), (36, 599018), (42, 513444), (56, 385083), (63, 342296), (72, 299509), (84, 256722), (126, 171148), (168, 128361), (252, 85574), (504, 42787)]