21245306

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{523}}^1\times {\mathrm{1069}}^1$

素因数の和:1613

約数の個数: 16

約数和(自身を含む): 33640800

約数和(自身を除く): 12395494

約数列:

[1, 2, 19, 38, 523, 1046, 1069, 2138, 9937, 19874, 20311, 40622, 559087, 1118174, 10622653, 21245306]

約数ペア:

[(1, 21245306), (2, 10622653), (19, 1118174), (38, 559087), (523, 40622), (1046, 20311), (1069, 19874), (2138, 9937)]