19857124

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 41287680

約数和(自身を除く): 21430556

約数列:

[1, 2, 4, 7, 14, 28, 47, 79, 94, 158, 188, 191, 316, 329, 382, 553, 658, 764, 1106, 1316, 1337, 2212, 2674, 3713, 5348, 7426, 8977, 14852, 15089, 17954, 25991, 30178, 35908, 51982, 60356, 62839, 103964, 105623, 125678, 211246, 251356, 422492, 709183, 1418366, 2836732, 4964281, 9928562, 19857124]

約数ペア:

[(1, 19857124), (2, 9928562), (4, 4964281), (7, 2836732), (14, 1418366), (28, 709183), (47, 422492), (79, 251356), (94, 211246), (158, 125678), (188, 105623), (191, 103964), (316, 62839), (329, 60356), (382, 51982), (553, 35908), (658, 30178), (764, 25991), (1106, 17954), (1316, 15089), (1337, 14852), (2212, 8977), (2674, 7426), (3713, 5348)]