19937498

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4409}}^1$

素因数の和:4454

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 18164902

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 119, 133, 238, 266, 323, 646, 2261, 4409, 4522, 8818, 30863, 61726, 74953, 83771, 149906, 167542, 524671, 586397, 1049342, 1172794, 1424107, 2848214, 9968749, 19937498]

約数ペア:

[(1, 19937498), (2, 9968749), (7, 2848214), (14, 1424107), (17, 1172794), (19, 1049342), (34, 586397), (38, 524671), (119, 167542), (133, 149906), (238, 83771), (266, 74953), (323, 61726), (646, 30863), (2261, 8818), (4409, 4522)]