21359192

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{140521}}^1$

素因数の和:140546

約数の個数: 16

約数和(自身を含む): 42156600

約数和(自身を除く): 20797408

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 140521, 281042, 562084, 1124168, 2669899, 5339798, 10679596, 21359192]

約数ペア:

[(1, 21359192), (2, 10679596), (4, 5339798), (8, 2669899), (19, 1124168), (38, 562084), (76, 281042), (152, 140521)]