20161621235

素因数分解:

$5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{523}}^1\times {\mathrm{5591}}^1$

素因数の和:6323

約数の個数: 32

約数和(自身を含む): 27848696832

約数和(自身を除く): 7687075597

約数列:

[1, 5, 7, 35, 197, 523, 985, 1379, 2615, 3661, 5591, 6895, 18305, 27955, 39137, 103031, 195685, 515155, 721217, 1101427, 2924093, 3606085, 5507135, 7709989, 14620465, 20468651, 38549945, 102343255, 576046321, 2880231605, 4032324247, 20161621235]

約数ペア:

[(1, 20161621235), (5, 4032324247), (7, 2880231605), (35, 576046321), (197, 102343255), (523, 38549945), (985, 20468651), (1379, 14620465), (2615, 7709989), (3661, 5507135), (5591, 3606085), (6895, 2924093), (18305, 1101427), (27955, 721217), (39137, 515155), (103031, 195685)]