18980845

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{6791}}^1$

素因数の和:6852

約数の個数: 16

約数和(自身を含む): 25103232

約数和(自身を除く): 6122387

約数列:

[1, 5, 13, 43, 65, 215, 559, 2795, 6791, 33955, 88283, 292013, 441415, 1460065, 3796169, 18980845]

約数ペア:

[(1, 18980845), (5, 3796169), (13, 1460065), (43, 441415), (65, 292013), (215, 88283), (559, 33955), (2795, 6791)]