1971215

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{281}}^1$

素因数の和:370

約数の個数: 16

約数和(自身を含む): 2517696

約数和(自身を除く): 546481

約数列:

[1, 5, 23, 61, 115, 281, 305, 1403, 1405, 6463, 7015, 17141, 32315, 85705, 394243, 1971215]

約数ペア:

[(1, 1971215), (5, 394243), (23, 85705), (61, 32315), (115, 17141), (281, 7015), (305, 6463), (1403, 1405)]