18982117

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{307}}^1$

素因数の和:409

約数の個数: 24

約数和(自身を含む): 24250688

約数和(自身を除く): 5268571

約数列:

[1, 7, 11, 73, 77, 121, 307, 511, 803, 847, 2149, 3377, 5621, 8833, 22411, 23639, 37147, 61831, 156877, 246521, 260029, 1725647, 2711731, 18982117]

約数ペア:

[(1, 18982117), (7, 2711731), (11, 1725647), (73, 260029), (77, 246521), (121, 156877), (307, 61831), (511, 37147), (803, 23639), (847, 22411), (2149, 8833), (3377, 5621)]