20656154

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{4987}}^1$

素因数の和:5117

約数の個数: 16

約数和(自身を含む): 32920800

約数和(自身を除く): 12264646

約数列:

[1, 2, 19, 38, 109, 218, 2071, 4142, 4987, 9974, 94753, 189506, 543583, 1087166, 10328077, 20656154]

約数ペア:

[(1, 20656154), (2, 10328077), (19, 1087166), (38, 543583), (109, 189506), (218, 94753), (2071, 9974), (4142, 4987)]