21111728

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{119953}}^1$

素因数の和:119972

約数の個数: 20

約数和(自身を含む): 44622888

約数和(自身を除く): 23511160

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 119953, 239906, 479812, 959624, 1319483, 1919248, 2638966, 5277932, 10555864, 21111728]

約数ペア:

[(1, 21111728), (2, 10555864), (4, 5277932), (8, 2638966), (11, 1919248), (16, 1319483), (22, 959624), (44, 479812), (88, 239906), (176, 119953)]