19687136

素因数分解:

$2^5\times 7^1\times {\mathrm{179}}^1\times {\mathrm{491}}^1$

素因数の和:687

約数の個数: 48

約数和(自身を含む): 44634240

約数和(自身を除く): 24947104

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 179, 224, 358, 491, 716, 982, 1253, 1432, 1964, 2506, 2864, 3437, 3928, 5012, 5728, 6874, 7856, 10024, 13748, 15712, 20048, 27496, 40096, 54992, 87889, 109984, 175778, 351556, 615223, 703112, 1230446, 1406224, 2460892, 2812448, 4921784, 9843568, 19687136]

約数ペア:

[(1, 19687136), (2, 9843568), (4, 4921784), (7, 2812448), (8, 2460892), (14, 1406224), (16, 1230446), (28, 703112), (32, 615223), (56, 351556), (112, 175778), (179, 109984), (224, 87889), (358, 54992), (491, 40096), (716, 27496), (982, 20048), (1253, 15712), (1432, 13748), (1964, 10024), (2506, 7856), (2864, 6874), (3437, 5728), (3928, 5012)]