20280866

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{7517}}^1$

素因数の和:7609

約数の個数: 16

約数和(自身を含む): 32477760

約数和(自身を除く): 12196894

約数列:

[1, 2, 19, 38, 71, 142, 1349, 2698, 7517, 15034, 142823, 285646, 533707, 1067414, 10140433, 20280866]

約数ペア:

[(1, 20280866), (2, 10140433), (19, 1067414), (38, 533707), (71, 285646), (142, 142823), (1349, 15034), (2698, 7517)]