219645538

素因数分解:

$2^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{13921}}^1$

素因数の和:13967

約数の個数: 32

約数和(自身を含む): 400953600

約数和(自身を除く): 181308062

約数列:

[1, 2, 7, 14, 23, 46, 49, 98, 161, 322, 343, 686, 1127, 2254, 7889, 13921, 15778, 27842, 97447, 194894, 320183, 640366, 682129, 1364258, 2241281, 4482562, 4774903, 9549806, 15688967, 31377934, 109822769, 219645538]

約数ペア:

[(1, 219645538), (2, 109822769), (7, 31377934), (14, 15688967), (23, 9549806), (46, 4774903), (49, 4482562), (98, 2241281), (161, 1364258), (322, 682129), (343, 640366), (686, 320183), (1127, 194894), (2254, 97447), (7889, 27842), (13921, 15778)]