21551672

素因数分解:

$2^3\times {\mathrm{139}}^1\times {\mathrm{19381}}^1$

素因数の和:19526

約数の個数: 16

約数和(自身を含む): 40702200

約数和(自身を除く): 19150528

約数列:

[1, 2, 4, 8, 139, 278, 556, 1112, 19381, 38762, 77524, 155048, 2693959, 5387918, 10775836, 21551672]

約数ペア:

[(1, 21551672), (2, 10775836), (4, 5387918), (8, 2693959), (139, 155048), (278, 77524), (556, 38762), (1112, 19381)]