19824976

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{643}}^1$

素因数の和:739

約数の個数: 40

約数和(自身を含む): 40247424

約数和(自身を除く): 20422448

約数列:

[1, 2, 4, 8, 16, 41, 47, 82, 94, 164, 188, 328, 376, 643, 656, 752, 1286, 1927, 2572, 3854, 5144, 7708, 10288, 15416, 26363, 30221, 30832, 52726, 60442, 105452, 120884, 210904, 241768, 421808, 483536, 1239061, 2478122, 4956244, 9912488, 19824976]

約数ペア:

[(1, 19824976), (2, 9912488), (4, 4956244), (8, 2478122), (16, 1239061), (41, 483536), (47, 421808), (82, 241768), (94, 210904), (164, 120884), (188, 105452), (328, 60442), (376, 52726), (643, 30832), (656, 30221), (752, 26363), (1286, 15416), (1927, 10288), (2572, 7708), (3854, 5144)]