21000688282

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{887}}^1\times {\mathrm{23819}}^1$

素因数の和:24786

約数の個数: 32

約数和(自身を含む): 36550932480

約数和(自身を除く): 15550244198

約数列:

[1, 2, 7, 14, 71, 142, 497, 887, 994, 1774, 6209, 12418, 23819, 47638, 62977, 125954, 166733, 333466, 440839, 881678, 1691149, 3382298, 11838043, 21127453, 23676086, 42254906, 147892171, 295784342, 1500049163, 3000098326, 10500344141, 21000688282]

約数ペア:

[(1, 21000688282), (2, 10500344141), (7, 3000098326), (14, 1500049163), (71, 295784342), (142, 147892171), (497, 42254906), (887, 23676086), (994, 21127453), (1774, 11838043), (6209, 3382298), (12418, 1691149), (23819, 881678), (47638, 440839), (62977, 333466), (125954, 166733)]