20173284

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:269

約数の個数: 72

約数和(自身を含む): 52972920

約数和(自身を除く): 32799636

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 97, 106, 109, 159, 194, 212, 218, 291, 318, 327, 388, 436, 477, 582, 636, 654, 873, 954, 981, 1164, 1308, 1746, 1908, 1962, 3492, 3924, 5141, 5777, 10282, 10573, 11554, 15423, 17331, 20564, 21146, 23108, 30846, 31719, 34662, 42292, 46269, 51993, 61692, 63438, 69324, 92538, 95157, 103986, 126876, 185076, 190314, 207972, 380628, 560369, 1120738, 1681107, 2241476, 3362214, 5043321, 6724428, 10086642, 20173284]

約数ペア:

[(1, 20173284), (2, 10086642), (3, 6724428), (4, 5043321), (6, 3362214), (9, 2241476), (12, 1681107), (18, 1120738), (36, 560369), (53, 380628), (97, 207972), (106, 190314), (109, 185076), (159, 126876), (194, 103986), (212, 95157), (218, 92538), (291, 69324), (318, 63438), (327, 61692), (388, 51993), (436, 46269), (477, 42292), (582, 34662), (636, 31719), (654, 30846), (873, 23108), (954, 21146), (981, 20564), (1164, 17331), (1308, 15423), (1746, 11554), (1908, 10573), (1962, 10282), (3492, 5777), (3924, 5141)]