19218678

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{457}}^1$

素因数の和:668

約数の個数: 32

約数和(自身を含む): 39659136

約数和(自身を除く): 20440458

約数列:

[1, 2, 3, 6, 43, 86, 129, 163, 258, 326, 457, 489, 914, 978, 1371, 2742, 7009, 14018, 19651, 21027, 39302, 42054, 58953, 74491, 117906, 148982, 223473, 446946, 3203113, 6406226, 9609339, 19218678]

約数ペア:

[(1, 19218678), (2, 9609339), (3, 6406226), (6, 3203113), (43, 446946), (86, 223473), (129, 148982), (163, 117906), (258, 74491), (326, 58953), (457, 42054), (489, 39302), (914, 21027), (978, 19651), (1371, 14018), (2742, 7009)]