20198768

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{21397}}^1$

素因数の和:21464

約数の個数: 20

約数和(自身を含む): 39800280

約数和(自身を除く): 19601512

約数列:

[1, 2, 4, 8, 16, 59, 118, 236, 472, 944, 21397, 42794, 85588, 171176, 342352, 1262423, 2524846, 5049692, 10099384, 20198768]

約数ペア:

[(1, 20198768), (2, 10099384), (4, 5049692), (8, 2524846), (16, 1262423), (59, 342352), (118, 171176), (236, 85588), (472, 42794), (944, 21397)]