18979824

素因数分解:

$2^4\times 3^1\times {\mathrm{199}}^1\times {\mathrm{1987}}^1$

素因数の和:2197

約数の個数: 40

約数和(自身を含む): 49302400

約数和(自身を除く): 30322576

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 199, 398, 597, 796, 1194, 1592, 1987, 2388, 3184, 3974, 4776, 5961, 7948, 9552, 11922, 15896, 23844, 31792, 47688, 95376, 395413, 790826, 1186239, 1581652, 2372478, 3163304, 4744956, 6326608, 9489912, 18979824]

約数ペア:

[(1, 18979824), (2, 9489912), (3, 6326608), (4, 4744956), (6, 3163304), (8, 2372478), (12, 1581652), (16, 1186239), (24, 790826), (48, 395413), (199, 95376), (398, 47688), (597, 31792), (796, 23844), (1194, 15896), (1592, 11922), (1987, 9552), (2388, 7948), (3184, 5961), (3974, 4776)]