19980248

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{131449}}^1$

素因数の和:131474

約数の個数: 16

約数和(自身を含む): 39435000

約数和(自身を除く): 19454752

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 131449, 262898, 525796, 1051592, 2497531, 4995062, 9990124, 19980248]

約数ペア:

[(1, 19980248), (2, 9990124), (4, 4995062), (8, 2497531), (19, 1051592), (38, 525796), (76, 262898), (152, 131449)]