18986716

素因数分解:

$2^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{1327}}^1$

素因数の和:1418

約数の個数: 36

約数和(自身を含む): 39210528

約数和(自身を除く): 20223812

約数列:

[1, 2, 4, 7, 14, 28, 49, 73, 98, 146, 196, 292, 511, 1022, 1327, 2044, 2654, 3577, 5308, 7154, 9289, 14308, 18578, 37156, 65023, 96871, 130046, 193742, 260092, 387484, 678097, 1356194, 2712388, 4746679, 9493358, 18986716]

約数ペア:

[(1, 18986716), (2, 9493358), (4, 4746679), (7, 2712388), (14, 1356194), (28, 678097), (49, 387484), (73, 260092), (98, 193742), (146, 130046), (196, 96871), (292, 65023), (511, 37156), (1022, 18578), (1327, 14308), (2044, 9289), (2654, 7154), (3577, 5308)]