19984894

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{283}}^1$

素因数の和:400

約数の個数: 32

約数和(自身を含む): 33371136

約数和(自身を除く): 13386242

約数列:

[1, 2, 17, 31, 34, 62, 67, 134, 283, 527, 566, 1054, 1139, 2077, 2278, 4154, 4811, 8773, 9622, 17546, 18961, 35309, 37922, 70618, 149141, 298282, 322337, 587791, 644674, 1175582, 9992447, 19984894]

約数ペア:

[(1, 19984894), (2, 9992447), (17, 1175582), (31, 644674), (34, 587791), (62, 322337), (67, 298282), (134, 149141), (283, 70618), (527, 37922), (566, 35309), (1054, 18961), (1139, 17546), (2077, 9622), (2278, 8773), (4154, 4811)]