2019220721

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{165877}}^1$

素因数の和:165968

約数の個数: 16

約数和(自身を含む): 2420491776

約数和(自身を除く): 401271055

約数列:

[1, 7, 37, 47, 259, 329, 1739, 12173, 165877, 1161139, 6137449, 7796219, 42962143, 54573533, 288460103, 2019220721]

約数ペア:

[(1, 2019220721), (7, 288460103), (37, 54573533), (47, 42962143), (259, 7796219), (329, 6137449), (1739, 1161139), (12173, 165877)]