21421116

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:275

約数の個数: 72

約数和(自身を含む): 56216160

約数和(自身を除く): 34795044

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 103, 106, 109, 159, 206, 212, 218, 309, 318, 327, 412, 436, 477, 618, 636, 654, 927, 954, 981, 1236, 1308, 1854, 1908, 1962, 3708, 3924, 5459, 5777, 10918, 11227, 11554, 16377, 17331, 21836, 22454, 23108, 32754, 33681, 34662, 44908, 49131, 51993, 65508, 67362, 69324, 98262, 101043, 103986, 134724, 196524, 202086, 207972, 404172, 595031, 1190062, 1785093, 2380124, 3570186, 5355279, 7140372, 10710558, 21421116]

約数ペア:

[(1, 21421116), (2, 10710558), (3, 7140372), (4, 5355279), (6, 3570186), (9, 2380124), (12, 1785093), (18, 1190062), (36, 595031), (53, 404172), (103, 207972), (106, 202086), (109, 196524), (159, 134724), (206, 103986), (212, 101043), (218, 98262), (309, 69324), (318, 67362), (327, 65508), (412, 51993), (436, 49131), (477, 44908), (618, 34662), (636, 33681), (654, 32754), (927, 23108), (954, 22454), (981, 21836), (1236, 17331), (1308, 16377), (1854, 11554), (1908, 11227), (1962, 10918), (3708, 5777), (3924, 5459)]