20787368

素因数分解:

$2^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2791}}^1$

素因数の和:2830

約数の個数: 48

約数和(自身を含む): 47743200

約数和(自身を除く): 26955832

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 49, 56, 76, 98, 133, 152, 196, 266, 392, 532, 931, 1064, 1862, 2791, 3724, 5582, 7448, 11164, 19537, 22328, 39074, 53029, 78148, 106058, 136759, 156296, 212116, 273518, 371203, 424232, 547036, 742406, 1094072, 1484812, 2598421, 2969624, 5196842, 10393684, 20787368]

約数ペア:

[(1, 20787368), (2, 10393684), (4, 5196842), (7, 2969624), (8, 2598421), (14, 1484812), (19, 1094072), (28, 742406), (38, 547036), (49, 424232), (56, 371203), (76, 273518), (98, 212116), (133, 156296), (152, 136759), (196, 106058), (266, 78148), (392, 53029), (532, 39074), (931, 22328), (1064, 19537), (1862, 11164), (2791, 7448), (3724, 5582)]