20897758

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{313}}^1$

素因数の和:592

約数の個数: 32

約数和(自身を含む): 37981440

約数和(自身を除く): 17083682

約数列:

[1, 2, 7, 14, 19, 38, 133, 251, 266, 313, 502, 626, 1757, 2191, 3514, 4382, 4769, 5947, 9538, 11894, 33383, 41629, 66766, 78563, 83258, 157126, 549941, 1099882, 1492697, 2985394, 10448879, 20897758]

約数ペア:

[(1, 20897758), (2, 10448879), (7, 2985394), (14, 1492697), (19, 1099882), (38, 549941), (133, 157126), (251, 83258), (266, 78563), (313, 66766), (502, 41629), (626, 33383), (1757, 11894), (2191, 9538), (3514, 5947), (4382, 4769)]