20905666

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:306

約数の個数: 32

約数和(自身を含む): 34276608

約数和(自身を除く): 13370942

約数列:

[1, 2, 23, 37, 46, 71, 74, 142, 173, 346, 851, 1633, 1702, 2627, 3266, 3979, 5254, 6401, 7958, 12283, 12802, 24566, 60421, 120842, 147223, 282509, 294446, 454471, 565018, 908942, 10452833, 20905666]

約数ペア:

[(1, 20905666), (2, 10452833), (23, 908942), (37, 565018), (46, 454471), (71, 294446), (74, 282509), (142, 147223), (173, 120842), (346, 60421), (851, 24566), (1633, 12802), (1702, 12283), (2627, 7958), (3266, 6401), (3979, 5254)]