20451286

素因数分解:

$2^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1\times {\mathrm{389}}^1$

素因数の和:759

約数の個数: 16

約数和(自身を含む): 31187520

約数和(自身を除く): 10736234

約数列:

[1, 2, 97, 194, 271, 389, 542, 778, 26287, 37733, 52574, 75466, 105419, 210838, 10225643, 20451286]

約数ペア:

[(1, 20451286), (2, 10225643), (97, 210838), (194, 105419), (271, 75466), (389, 52574), (542, 37733), (778, 26287)]