19990551

素因数分解:

$3^1\times 7^1\times {\mathrm{457}}^1\times {\mathrm{2083}}^1$

素因数の和:2550

約数の個数: 16

約数和(自身を含む): 30543104

約数和(自身を除く): 10552553

約数列:

[1, 3, 7, 21, 457, 1371, 2083, 3199, 6249, 9597, 14581, 43743, 951931, 2855793, 6663517, 19990551]

約数ペア:

[(1, 19990551), (3, 6663517), (7, 2855793), (21, 951931), (457, 43743), (1371, 14581), (2083, 9597), (3199, 6249)]