21629776

素因数分解:

$2^4\times 7^2\times {\mathrm{47}}^1\times {\mathrm{587}}^1$

素因数の和:656

約数の個数: 60

約数和(自身を含む): 49871808

約数和(自身を除く): 28242032

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 49, 56, 94, 98, 112, 188, 196, 329, 376, 392, 587, 658, 752, 784, 1174, 1316, 2303, 2348, 2632, 4109, 4606, 4696, 5264, 8218, 9212, 9392, 16436, 18424, 27589, 28763, 32872, 36848, 55178, 57526, 65744, 110356, 115052, 193123, 220712, 230104, 386246, 441424, 460208, 772492, 1351861, 1544984, 2703722, 3089968, 5407444, 10814888, 21629776]

約数ペア:

[(1, 21629776), (2, 10814888), (4, 5407444), (7, 3089968), (8, 2703722), (14, 1544984), (16, 1351861), (28, 772492), (47, 460208), (49, 441424), (56, 386246), (94, 230104), (98, 220712), (112, 193123), (188, 115052), (196, 110356), (329, 65744), (376, 57526), (392, 55178), (587, 36848), (658, 32872), (752, 28763), (784, 27589), (1174, 18424), (1316, 16436), (2303, 9392), (2348, 9212), (2632, 8218), (4109, 5264), (4606, 4696)]