19989368

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{18787}}^1$

素因数の和:18819

約数の個数: 32

約数和(自身を含む): 45091200

約数和(自身を除く): 25101832

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 18787, 37574, 75148, 131509, 150296, 263018, 356953, 526036, 713906, 1052072, 1427812, 2498671, 2855624, 4997342, 9994684, 19989368]

約数ペア:

[(1, 19989368), (2, 9994684), (4, 4997342), (7, 2855624), (8, 2498671), (14, 1427812), (19, 1052072), (28, 713906), (38, 526036), (56, 356953), (76, 263018), (133, 150296), (152, 131509), (266, 75148), (532, 37574), (1064, 18787)]