31290896

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21491}}^1$

素因数の和:21519

約数の個数: 40

約数和(自身を含む): 74620224

約数和(自身を除く): 43329328

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 21491, 42982, 85964, 150437, 171928, 279383, 300874, 343856, 558766, 601748, 1117532, 1203496, 1955681, 2235064, 2406992, 3911362, 4470128, 7822724, 15645448, 31290896]

約数ペア:

[(1, 31290896), (2, 15645448), (4, 7822724), (7, 4470128), (8, 3911362), (13, 2406992), (14, 2235064), (16, 1955681), (26, 1203496), (28, 1117532), (52, 601748), (56, 558766), (91, 343856), (104, 300874), (112, 279383), (182, 171928), (208, 150437), (364, 85964), (728, 42982), (1456, 21491)]