638482017

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{67801}}^1$

素因数の和:67920

約数の個数: 16

約数和(自身を含む): 883053248

約数和(自身を除く): 244571231

約数列:

[1, 3, 43, 73, 129, 219, 3139, 9417, 67801, 203403, 2915443, 4949473, 8746329, 14848419, 212827339, 638482017]

約数ペア:

[(1, 638482017), (3, 212827339), (43, 14848419), (73, 8746329), (129, 4949473), (219, 2915443), (3139, 203403), (9417, 67801)]