19911778844

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{6619}}^1\times {\mathrm{12329}}^1$

素因数の和:19013

約数の個数: 24

約数和(自身を含む): 35425076400

約数和(自身を除く): 15513297556

約数列:

[1, 2, 4, 61, 122, 244, 6619, 12329, 13238, 24658, 26476, 49316, 403759, 752069, 807518, 1504138, 1615036, 3008276, 81605651, 163211302, 326422604, 4977944711, 9955889422, 19911778844]

約数ペア:

[(1, 19911778844), (2, 9955889422), (4, 4977944711), (61, 326422604), (122, 163211302), (244, 81605651), (6619, 3008276), (12329, 1615036), (13238, 1504138), (24658, 807518), (26476, 752069), (49316, 403759)]