18640611

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{20921}}^1$

素因数の和:20944

約数の個数: 20

約数和(自身を含む): 30378744

約数和(自身を除く): 11738133

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 20921, 62763, 188289, 230131, 564867, 690393, 1694601, 2071179, 6213537, 18640611]

約数ペア:

[(1, 18640611), (3, 6213537), (9, 2071179), (11, 1694601), (27, 690393), (33, 564867), (81, 230131), (99, 188289), (297, 62763), (891, 20921)]