19963576

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{811}}^1$

素因数の和:1015

約数の個数: 32

約数和(自身を含む): 39901680

約数和(自身を除く): 19938104

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 181, 362, 724, 811, 1448, 1622, 3077, 3244, 6154, 6488, 12308, 13787, 24616, 27574, 55148, 110296, 146791, 293582, 587164, 1174328, 2495447, 4990894, 9981788, 19963576]

約数ペア:

[(1, 19963576), (2, 9981788), (4, 4990894), (8, 2495447), (17, 1174328), (34, 587164), (68, 293582), (136, 146791), (181, 110296), (362, 55148), (724, 27574), (811, 24616), (1448, 13787), (1622, 12308), (3077, 6488), (3244, 6154)]