19254697

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:421

約数の個数: 24

約数和(自身を含む): 24706080

約数和(自身を除く): 5451383

約数列:

[1, 7, 11, 49, 77, 139, 257, 539, 973, 1529, 1799, 2827, 6811, 10703, 12593, 19789, 35723, 74921, 138523, 250061, 392953, 1750427, 2750671, 19254697]

約数ペア:

[(1, 19254697), (7, 2750671), (11, 1750427), (49, 392953), (77, 250061), (139, 138523), (257, 74921), (539, 35723), (973, 19789), (1529, 12593), (1799, 10703), (2827, 6811)]