19780077

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{4013}}^1$

素因数の和:4100

約数の個数: 16

約数和(自身を含む): 27744768

約数和(自身を除く): 7964691

約数列:

[1, 3, 31, 53, 93, 159, 1643, 4013, 4929, 12039, 124403, 212689, 373209, 638067, 6593359, 19780077]

約数ペア:

[(1, 19780077), (3, 6593359), (31, 638067), (53, 373209), (93, 212689), (159, 124403), (1643, 12039), (4013, 4929)]