219618974

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{647}}^1\times {\mathrm{3947}}^1$

素因数の和:4639

約数の個数: 16

約数和(自身を含む): 337696128

約数和(自身を除く): 118077154

約数列:

[1, 2, 43, 86, 647, 1294, 3947, 7894, 27821, 55642, 169721, 339442, 2553709, 5107418, 109809487, 219618974]

約数ペア:

[(1, 219618974), (2, 109809487), (43, 5107418), (86, 2553709), (647, 339442), (1294, 169721), (3947, 55642), (7894, 27821)]