21396056

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{243137}}^1$

素因数の和:243154

約数の個数: 16

約数和(自身を含む): 43764840

約数和(自身を除く): 22368784

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 243137, 486274, 972548, 1945096, 2674507, 5349014, 10698028, 21396056]

約数ペア:

[(1, 21396056), (2, 10698028), (4, 5349014), (8, 2674507), (11, 1945096), (22, 972548), (44, 486274), (88, 243137)]