20909344

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{15937}}^1$

素因数の和:15988

約数の個数: 24

約数和(自身を含む): 42171948

約数和(自身を除く): 21262604

約数列:

[1, 2, 4, 8, 16, 32, 41, 82, 164, 328, 656, 1312, 15937, 31874, 63748, 127496, 254992, 509984, 653417, 1306834, 2613668, 5227336, 10454672, 20909344]

約数ペア:

[(1, 20909344), (2, 10454672), (4, 5227336), (8, 2613668), (16, 1306834), (32, 653417), (41, 509984), (82, 254992), (164, 127496), (328, 63748), (656, 31874), (1312, 15937)]