21985367047

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{4999}}^1\times {\mathrm{8849}}^1$

素因数の和:13926

約数の個数: 16

約数和(自身を含む): 25488000000

約数和(自身を除く): 3502632953

約数列:

[1, 7, 71, 497, 4999, 8849, 34993, 61943, 354929, 628279, 2484503, 4397953, 44236151, 309653057, 3140766721, 21985367047]

約数ペア:

[(1, 21985367047), (7, 3140766721), (71, 309653057), (497, 44236151), (4999, 4397953), (8849, 2484503), (34993, 628279), (61943, 354929)]