19784778

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{253651}}^1$

素因数の和:253669

約数の個数: 16

約数和(自身を含む): 42613536

約数和(自身を除く): 22828758

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 253651, 507302, 760953, 1521906, 3297463, 6594926, 9892389, 19784778]

約数ペア:

[(1, 19784778), (2, 9892389), (3, 6594926), (6, 3297463), (13, 1521906), (26, 760953), (39, 507302), (78, 253651)]