20987150847

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{1511}}^1\times {\mathrm{356143}}^1$

素因数の和:357670

約数の個数: 16

約数和(自身を含む): 30155424768

約数和(自身を除く): 9168273921

約数列:

[1, 3, 13, 39, 1511, 4533, 19643, 58929, 356143, 1068429, 4629859, 13889577, 538132073, 1614396219, 6995716949, 20987150847]

約数ペア:

[(1, 20987150847), (3, 6995716949), (13, 1614396219), (39, 538132073), (1511, 13889577), (4533, 4629859), (19643, 1068429), (58929, 356143)]