19884304

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{112979}}^1$

素因数の和:112998

約数の個数: 20

約数和(自身を含む): 42028560

約数和(自身を除く): 22144256

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 112979, 225958, 451916, 903832, 1242769, 1807664, 2485538, 4971076, 9942152, 19884304]

約数ペア:

[(1, 19884304), (2, 9942152), (4, 4971076), (8, 2485538), (11, 1807664), (16, 1242769), (22, 903832), (44, 451916), (88, 225958), (176, 112979)]