19478459

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:132

約数の個数: 48

約数和(自身を含む): 27706560

約数和(自身を除く): 8228101

約数列:

[1, 7, 11, 13, 29, 61, 77, 91, 121, 143, 203, 319, 377, 427, 671, 793, 847, 1001, 1573, 1769, 2233, 2639, 3509, 4147, 4697, 5551, 7381, 8723, 11011, 12383, 19459, 22997, 24563, 29029, 45617, 51667, 61061, 95953, 136213, 160979, 214049, 252967, 319319, 671671, 1498343, 1770769, 2782637, 19478459]

約数ペア:

[(1, 19478459), (7, 2782637), (11, 1770769), (13, 1498343), (29, 671671), (61, 319319), (77, 252967), (91, 214049), (121, 160979), (143, 136213), (203, 95953), (319, 61061), (377, 51667), (427, 45617), (671, 29029), (793, 24563), (847, 22997), (1001, 19459), (1573, 12383), (1769, 11011), (2233, 8723), (2639, 7381), (3509, 5551), (4147, 4697)]