20159555

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{937}}^1$

素因数の和:1286

約数の個数: 16

約数和(自身を含む): 26158944

約数和(自身を除く): 5999389

約数列:

[1, 5, 13, 65, 331, 937, 1655, 4303, 4685, 12181, 21515, 60905, 310147, 1550735, 4031911, 20159555]

約数ペア:

[(1, 20159555), (5, 4031911), (13, 1550735), (65, 310147), (331, 60905), (937, 21515), (1655, 12181), (4303, 4685)]