19858384

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{593}}^1$

素因数の和:644

約数の個数: 80

約数和(自身を含む): 49496832

約数和(自身を除く): 29638448

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 23, 26, 28, 46, 52, 56, 91, 92, 104, 112, 161, 182, 184, 208, 299, 322, 364, 368, 593, 598, 644, 728, 1186, 1196, 1288, 1456, 2093, 2372, 2392, 2576, 4151, 4186, 4744, 4784, 7709, 8302, 8372, 9488, 13639, 15418, 16604, 16744, 27278, 30836, 33208, 33488, 53963, 54556, 61672, 66416, 95473, 107926, 109112, 123344, 177307, 190946, 215852, 218224, 354614, 381892, 431704, 709228, 763784, 863408, 1241149, 1418456, 1527568, 2482298, 2836912, 4964596, 9929192, 19858384]

約数ペア:

[(1, 19858384), (2, 9929192), (4, 4964596), (7, 2836912), (8, 2482298), (13, 1527568), (14, 1418456), (16, 1241149), (23, 863408), (26, 763784), (28, 709228), (46, 431704), (52, 381892), (56, 354614), (91, 218224), (92, 215852), (104, 190946), (112, 177307), (161, 123344), (182, 109112), (184, 107926), (208, 95473), (299, 66416), (322, 61672), (364, 54556), (368, 53963), (593, 33488), (598, 33208), (644, 30836), (728, 27278), (1186, 16744), (1196, 16604), (1288, 15418), (1456, 13639), (2093, 9488), (2372, 8372), (2392, 8302), (2576, 7709), (4151, 4784), (4186, 4744)]