19209876

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:261

約数の個数: 96

約数和(自身を含む): 54663168

約数和(自身を除く): 35453292

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 23, 28, 42, 46, 61, 69, 84, 92, 122, 138, 161, 163, 183, 244, 276, 322, 326, 366, 427, 483, 489, 644, 652, 732, 854, 966, 978, 1141, 1281, 1403, 1708, 1932, 1956, 2282, 2562, 2806, 3423, 3749, 4209, 4564, 5124, 5612, 6846, 7498, 8418, 9821, 9943, 11247, 13692, 14996, 16836, 19642, 19886, 22494, 26243, 29463, 29829, 39284, 39772, 44988, 52486, 58926, 59658, 69601, 78729, 104972, 117852, 119316, 139202, 157458, 208803, 228689, 278404, 314916, 417606, 457378, 686067, 835212, 914756, 1372134, 1600823, 2744268, 3201646, 4802469, 6403292, 9604938, 19209876]

約数ペア:

[(1, 19209876), (2, 9604938), (3, 6403292), (4, 4802469), (6, 3201646), (7, 2744268), (12, 1600823), (14, 1372134), (21, 914756), (23, 835212), (28, 686067), (42, 457378), (46, 417606), (61, 314916), (69, 278404), (84, 228689), (92, 208803), (122, 157458), (138, 139202), (161, 119316), (163, 117852), (183, 104972), (244, 78729), (276, 69601), (322, 59658), (326, 58926), (366, 52486), (427, 44988), (483, 39772), (489, 39284), (644, 29829), (652, 29463), (732, 26243), (854, 22494), (966, 19886), (978, 19642), (1141, 16836), (1281, 14996), (1403, 13692), (1708, 11247), (1932, 9943), (1956, 9821), (2282, 8418), (2562, 7498), (2806, 6846), (3423, 5612), (3749, 5124), (4209, 4564)]