21401864

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{243203}}^1$

素因数の和:243220

約数の個数: 16

約数和(自身を含む): 43776720

約数和(自身を除く): 22374856

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 243203, 486406, 972812, 1945624, 2675233, 5350466, 10700932, 21401864]

約数ペア:

[(1, 21401864), (2, 10700932), (4, 5350466), (8, 2675233), (11, 1945624), (22, 972812), (44, 486406), (88, 243203)]