21842938

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{12539}}^1$

素因数の和:12621

約数の個数: 16

約数和(自身を含む): 35814240

約数和(自身を除く): 13971302

約数列:

[1, 2, 13, 26, 67, 134, 871, 1742, 12539, 25078, 163007, 326014, 840113, 1680226, 10921469, 21842938]

約数ペア:

[(1, 21842938), (2, 10921469), (13, 1680226), (26, 840113), (67, 326014), (134, 163007), (871, 25078), (1742, 12539)]