19639844

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1$

素因数の和:145

約数の個数: 72

約数和(自身を含む): 43525440

約数和(自身を除く): 23885596

約数列:

[1, 2, 4, 7, 14, 19, 28, 29, 38, 58, 67, 76, 116, 133, 134, 203, 266, 268, 361, 406, 469, 532, 551, 722, 812, 938, 1102, 1273, 1444, 1876, 1943, 2204, 2527, 2546, 3857, 3886, 5054, 5092, 7714, 7772, 8911, 10108, 10469, 13601, 15428, 17822, 20938, 24187, 27202, 35644, 36917, 41876, 48374, 54404, 73283, 73834, 96748, 146566, 147668, 169309, 258419, 293132, 338618, 516838, 677236, 701423, 1033676, 1402846, 2805692, 4909961, 9819922, 19639844]

約数ペア:

[(1, 19639844), (2, 9819922), (4, 4909961), (7, 2805692), (14, 1402846), (19, 1033676), (28, 701423), (29, 677236), (38, 516838), (58, 338618), (67, 293132), (76, 258419), (116, 169309), (133, 147668), (134, 146566), (203, 96748), (266, 73834), (268, 73283), (361, 54404), (406, 48374), (469, 41876), (532, 36917), (551, 35644), (722, 27202), (812, 24187), (938, 20938), (1102, 17822), (1273, 15428), (1444, 13601), (1876, 10469), (1943, 10108), (2204, 8911), (2527, 7772), (2546, 7714), (3857, 5092), (3886, 5054)]