20004278

素因数分解:

$2^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{11251}}^1$

素因数の和:11387

約数の個数: 16

約数和(自身を含む): 34566144

約数和(自身を除く): 14561866

約数列:

[1, 2, 7, 14, 127, 254, 889, 1778, 11251, 22502, 78757, 157514, 1428877, 2857754, 10002139, 20004278]

約数ペア:

[(1, 20004278), (2, 10002139), (7, 2857754), (14, 1428877), (127, 157514), (254, 78757), (889, 22502), (1778, 11251)]