20915105

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{1607}}^1$

素因数の和:1768

約数の個数: 16

約数和(自身を含む): 26628480

約数和(自身を除く): 5713375

約数列:

[1, 5, 19, 95, 137, 685, 1607, 2603, 8035, 13015, 30533, 152665, 220159, 1100795, 4183021, 20915105]

約数ペア:

[(1, 20915105), (5, 4183021), (19, 1100795), (95, 220159), (137, 152665), (685, 30533), (1607, 13015), (2603, 8035)]