19784386

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:298

約数の個数: 32

約数和(自身を含む): 32288256

約数和(自身を除く): 12503870

約数列:

[1, 2, 31, 41, 43, 62, 82, 86, 181, 362, 1271, 1333, 1763, 2542, 2666, 3526, 5611, 7421, 7783, 11222, 14842, 15566, 54653, 109306, 230051, 241273, 319103, 460102, 482546, 638206, 9892193, 19784386]

約数ペア:

[(1, 19784386), (2, 9892193), (31, 638206), (41, 482546), (43, 460102), (62, 319103), (82, 241273), (86, 230051), (181, 109306), (362, 54653), (1271, 15566), (1333, 14842), (1763, 11222), (2542, 7783), (2666, 7421), (3526, 5611)]