18700912

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{10723}}^1$

素因数の和:10840

約数の個数: 20

約数和(自身を含む): 36568840

約数和(自身を除く): 17867928

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 10723, 21446, 42892, 85784, 171568, 1168807, 2337614, 4675228, 9350456, 18700912]

約数ペア:

[(1, 18700912), (2, 9350456), (4, 4675228), (8, 2337614), (16, 1168807), (109, 171568), (218, 85784), (436, 42892), (872, 21446), (1744, 10723)]