20919152

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{68813}}^1$

素因数の和:68840

約数の個数: 20

約数和(自身を含む): 42664680

約数和(自身を除く): 21745528

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 68813, 137626, 275252, 550504, 1101008, 1307447, 2614894, 5229788, 10459576, 20919152]

約数ペア:

[(1, 20919152), (2, 10459576), (4, 5229788), (8, 2614894), (16, 1307447), (19, 1101008), (38, 550504), (76, 275252), (152, 137626), (304, 68813)]