20556537

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{8387}}^1$

素因数の和:8452

約数の個数: 16

約数和(自身を含む): 29525760

約数和(自身を除く): 8969223

約数列:

[1, 3, 19, 43, 57, 129, 817, 2451, 8387, 25161, 159353, 360641, 478059, 1081923, 6852179, 20556537]

約数ペア:

[(1, 20556537), (3, 6852179), (19, 1081923), (43, 478059), (57, 360641), (129, 159353), (817, 25161), (2451, 8387)]