40390569

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{13477}}^1$

素因数の和:13526

約数の個数: 20

約数和(自身を含む): 61971844

約数和(自身を除く): 21581275

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 999, 2997, 13477, 40431, 121293, 363879, 498649, 1091637, 1495947, 4487841, 13463523, 40390569]

約数ペア:

[(1, 40390569), (3, 13463523), (9, 4487841), (27, 1495947), (37, 1091637), (81, 498649), (111, 363879), (333, 121293), (999, 40431), (2997, 13477)]