18747742

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{409}}^1$

素因数の和:508

約数の個数: 32

約数和(自身を含む): 31822560

約数和(自身を除く): 13074818

約数列:

[1, 2, 13, 26, 41, 43, 82, 86, 409, 533, 559, 818, 1066, 1118, 1763, 3526, 5317, 10634, 16769, 17587, 22919, 33538, 35174, 45838, 217997, 228631, 435994, 457262, 721067, 1442134, 9373871, 18747742]

約数ペア:

[(1, 18747742), (2, 9373871), (13, 1442134), (26, 721067), (41, 457262), (43, 435994), (82, 228631), (86, 217997), (409, 45838), (533, 35174), (559, 33538), (818, 22919), (1066, 17587), (1118, 16769), (1763, 10634), (3526, 5317)]