20186978

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{38971}}^1$

素因数の和:39017

約数の個数: 16

約数和(自身を含む): 35542464

約数和(自身を除く): 15355486

約数列:

[1, 2, 7, 14, 37, 74, 259, 518, 38971, 77942, 272797, 545594, 1441927, 2883854, 10093489, 20186978]

約数ペア:

[(1, 20186978), (2, 10093489), (7, 2883854), (14, 1441927), (37, 545594), (74, 272797), (259, 77942), (518, 38971)]