19956586

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:346

約数の個数: 32

約数和(自身を含む): 33537168

約数和(自身を除く): 13580582

約数列:

[1, 2, 13, 26, 41, 82, 97, 193, 194, 386, 533, 1066, 1261, 2509, 2522, 3977, 5018, 7913, 7954, 15826, 18721, 37442, 51701, 102869, 103402, 205738, 243373, 486746, 767561, 1535122, 9978293, 19956586]

約数ペア:

[(1, 19956586), (2, 9978293), (13, 1535122), (26, 767561), (41, 486746), (82, 243373), (97, 205738), (193, 103402), (194, 102869), (386, 51701), (533, 37442), (1066, 18721), (1261, 15826), (2509, 7954), (2522, 7913), (3977, 5018)]