21352357

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1223}}^1$

素因数の和:1332

約数の個数: 16

約数和(自身を含む): 24675840

約数和(自身を除く): 3323483

約数列:

[1, 13, 17, 79, 221, 1027, 1223, 1343, 15899, 17459, 20791, 96617, 270283, 1256021, 1642489, 21352357]

約数ペア:

[(1, 21352357), (13, 1642489), (17, 1256021), (79, 270283), (221, 96617), (1027, 20791), (1223, 17459), (1343, 15899)]