20747968

素因数分解:

$2^6\times {\mathrm{41}}^1\times {\mathrm{7907}}^1$

素因数の和:7960

約数の個数: 28

約数和(自身を含む): 42181272

約数和(自身を除く): 21433304

約数列:

[1, 2, 4, 8, 16, 32, 41, 64, 82, 164, 328, 656, 1312, 2624, 7907, 15814, 31628, 63256, 126512, 253024, 324187, 506048, 648374, 1296748, 2593496, 5186992, 10373984, 20747968]

約数ペア:

[(1, 20747968), (2, 10373984), (4, 5186992), (8, 2593496), (16, 1296748), (32, 648374), (41, 506048), (64, 324187), (82, 253024), (164, 126512), (328, 63256), (656, 31628), (1312, 15814), (2624, 7907)]