20427946

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{389}}^1$

素因数の和:451

約数の個数: 48

約数和(自身を含む): 39836160

約数和(自身を除く): 19408214

約数列:

[1, 2, 7, 11, 14, 22, 31, 62, 77, 121, 154, 217, 242, 341, 389, 434, 682, 778, 847, 1694, 2387, 2723, 3751, 4279, 4774, 5446, 7502, 8558, 12059, 24118, 26257, 29953, 47069, 52514, 59906, 84413, 94138, 132649, 168826, 265298, 329483, 658966, 928543, 1459139, 1857086, 2918278, 10213973, 20427946]

約数ペア:

[(1, 20427946), (2, 10213973), (7, 2918278), (11, 1857086), (14, 1459139), (22, 928543), (31, 658966), (62, 329483), (77, 265298), (121, 168826), (154, 132649), (217, 94138), (242, 84413), (341, 59906), (389, 52514), (434, 47069), (682, 29953), (778, 26257), (847, 24118), (1694, 12059), (2387, 8558), (2723, 7502), (3751, 5446), (4279, 4774)]