21779728

素因数分解:

$2^4\times {\mathrm{271}}^1\times {\mathrm{5023}}^1$

素因数の和:5302

約数の個数: 20

約数和(自身を含む): 42362368

約数和(自身を除く): 20582640

約数列:

[1, 2, 4, 8, 16, 271, 542, 1084, 2168, 4336, 5023, 10046, 20092, 40184, 80368, 1361233, 2722466, 5444932, 10889864, 21779728]

約数ペア:

[(1, 21779728), (2, 10889864), (4, 5444932), (8, 2722466), (16, 1361233), (271, 80368), (542, 40184), (1084, 20092), (2168, 10046), (4336, 5023)]