21418408

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{243391}}^1$

素因数の和:243408

約数の個数: 16

約数和(自身を含む): 43810560

約数和(自身を除く): 22392152

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 243391, 486782, 973564, 1947128, 2677301, 5354602, 10709204, 21418408]

約数ペア:

[(1, 21418408), (2, 10709204), (4, 5354602), (8, 2677301), (11, 1947128), (22, 973564), (44, 486782), (88, 243391)]