21392008

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{243091}}^1$

素因数の和:243108

約数の個数: 16

約数和(自身を含む): 43756560

約数和(自身を除く): 22364552

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 243091, 486182, 972364, 1944728, 2674001, 5348002, 10696004, 21392008]

約数ペア:

[(1, 21392008), (2, 10696004), (4, 5348002), (8, 2674001), (11, 1944728), (22, 972364), (44, 486182), (88, 243091)]