19964252

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1223}}^1$

素因数の和:1298

約数の個数: 48

約数和(自身を含む): 44416512

約数和(自身を除く): 24452260

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 53, 77, 106, 154, 212, 308, 371, 583, 742, 1166, 1223, 1484, 2332, 2446, 4081, 4892, 8162, 8561, 13453, 16324, 17122, 26906, 34244, 53812, 64819, 94171, 129638, 188342, 259276, 376684, 453733, 713009, 907466, 1426018, 1814932, 2852036, 4991063, 9982126, 19964252]

約数ペア:

[(1, 19964252), (2, 9982126), (4, 4991063), (7, 2852036), (11, 1814932), (14, 1426018), (22, 907466), (28, 713009), (44, 453733), (53, 376684), (77, 259276), (106, 188342), (154, 129638), (212, 94171), (308, 64819), (371, 53812), (583, 34244), (742, 26906), (1166, 17122), (1223, 16324), (1484, 13453), (2332, 8561), (2446, 8162), (4081, 4892)]