21000496

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{119321}}^1$

素因数の和:119340

約数の個数: 20

約数和(自身を含む): 44387784

約数和(自身を除く): 23387288

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 119321, 238642, 477284, 954568, 1312531, 1909136, 2625062, 5250124, 10500248, 21000496]

約数ペア:

[(1, 21000496), (2, 10500248), (4, 5250124), (8, 2625062), (11, 1909136), (16, 1312531), (22, 954568), (44, 477284), (88, 238642), (176, 119321)]