19511613

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:111

約数の個数: 72

約数和(自身を含む): 34856640

約数和(自身を除く): 15345027

約数列:

[1, 3, 9, 11, 19, 23, 33, 41, 57, 69, 99, 121, 123, 171, 207, 209, 253, 363, 369, 437, 451, 627, 759, 779, 943, 1089, 1311, 1353, 1881, 2277, 2299, 2337, 2783, 2829, 3933, 4059, 4807, 4961, 6897, 7011, 8349, 8487, 8569, 10373, 14421, 14883, 17917, 20691, 25047, 25707, 31119, 43263, 44649, 52877, 53751, 77121, 93357, 94259, 114103, 158631, 161253, 197087, 282777, 342309, 475893, 591261, 848331, 1026927, 1773783, 2167957, 6503871, 19511613]

約数ペア:

[(1, 19511613), (3, 6503871), (9, 2167957), (11, 1773783), (19, 1026927), (23, 848331), (33, 591261), (41, 475893), (57, 342309), (69, 282777), (99, 197087), (121, 161253), (123, 158631), (171, 114103), (207, 94259), (209, 93357), (253, 77121), (363, 53751), (369, 52877), (437, 44649), (451, 43263), (627, 31119), (759, 25707), (779, 25047), (943, 20691), (1089, 17917), (1311, 14883), (1353, 14421), (1881, 10373), (2277, 8569), (2299, 8487), (2337, 8349), (2783, 7011), (2829, 6897), (3933, 4961), (4059, 4807)]