21120346

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{9787}}^1$

素因数の和:9885

約数の個数: 16

約数和(自身を含む): 34532064

約数和(自身を除く): 13411718

約数列:

[1, 2, 13, 26, 83, 166, 1079, 2158, 9787, 19574, 127231, 254462, 812321, 1624642, 10560173, 21120346]

約数ペア:

[(1, 21120346), (2, 10560173), (13, 1624642), (26, 812321), (83, 254462), (166, 127231), (1079, 19574), (2158, 9787)]