19991390

素因数分解:

$2^1\times 5^1\times {\mathrm{293}}^1\times {\mathrm{6823}}^1$

素因数の和:7123

約数の個数: 16

約数和(自身を含む): 36112608

約数和(自身を除く): 16121218

約数列:

[1, 2, 5, 10, 293, 586, 1465, 2930, 6823, 13646, 34115, 68230, 1999139, 3998278, 9995695, 19991390]

約数ペア:

[(1, 19991390), (2, 9995695), (5, 3998278), (10, 1999139), (293, 68230), (586, 34115), (1465, 13646), (2930, 6823)]