20806613191

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{353}}^1\times {\mathrm{5443}}^1$

素因数の和:5840

約数の個数: 48

約数和(自身を含む): 27681956064

約数和(自身を除く): 6875342873

約数列:

[1, 7, 13, 17, 49, 91, 119, 221, 353, 637, 833, 1547, 2471, 4589, 5443, 6001, 10829, 17297, 32123, 38101, 42007, 70759, 78013, 92531, 224861, 266707, 294049, 495313, 546091, 647717, 1202903, 1921379, 3467191, 3822637, 4534019, 8420321, 13449653, 24977927, 32663443, 58942247, 94147571, 174845489, 228644101, 424624759, 1223918423, 1600508707, 2972373313, 20806613191]

約数ペア:

[(1, 20806613191), (7, 2972373313), (13, 1600508707), (17, 1223918423), (49, 424624759), (91, 228644101), (119, 174845489), (221, 94147571), (353, 58942247), (637, 32663443), (833, 24977927), (1547, 13449653), (2471, 8420321), (4589, 4534019), (5443, 3822637), (6001, 3467191), (10829, 1921379), (17297, 1202903), (32123, 647717), (38101, 546091), (42007, 495313), (70759, 294049), (78013, 266707), (92531, 224861)]