20663944

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{19421}}^1$

素因数の和:19453

約数の個数: 32

約数和(自身を含む): 46612800

約数和(自身を除く): 25948856

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 19421, 38842, 77684, 135947, 155368, 271894, 368999, 543788, 737998, 1087576, 1475996, 2582993, 2951992, 5165986, 10331972, 20663944]

約数ペア:

[(1, 20663944), (2, 10331972), (4, 5165986), (7, 2951992), (8, 2582993), (14, 1475996), (19, 1087576), (28, 737998), (38, 543788), (56, 368999), (76, 271894), (133, 155368), (152, 135947), (266, 77684), (532, 38842), (1064, 19421)]