20290361

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{601}}^1$

素因数の和:681

約数の個数: 24

約数和(自身を含む): 25941384

約数和(自身を除く): 5651023

約数列:

[1, 7, 13, 49, 53, 91, 371, 601, 637, 689, 2597, 4207, 4823, 7813, 29449, 31853, 33761, 54691, 222971, 382837, 414089, 1560797, 2898623, 20290361]

約数ペア:

[(1, 20290361), (7, 2898623), (13, 1560797), (49, 414089), (53, 382837), (91, 222971), (371, 54691), (601, 33761), (637, 31853), (689, 29449), (2597, 7813), (4207, 4823)]