221976538

素因数分解:

$2^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{145463}}^1$

素因数の和:145581

約数の個数: 16

約数和(自身を含む): 384024960

約数和(自身を除く): 162048422

約数列:

[1, 2, 7, 14, 109, 218, 763, 1526, 145463, 290926, 1018241, 2036482, 15855467, 31710934, 110988269, 221976538]

約数ペア:

[(1, 221976538), (2, 110988269), (7, 31710934), (14, 15855467), (109, 2036482), (218, 1018241), (763, 290926), (1526, 145463)]