199901787

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{16831}}^1$

素因数の和:16978

約数の個数: 16

約数和(自身を含む): 276314112

約数和(自身を除く): 76412325

約数列:

[1, 3, 37, 107, 111, 321, 3959, 11877, 16831, 50493, 622747, 1800917, 1868241, 5402751, 66633929, 199901787]

約数ペア:

[(1, 199901787), (3, 66633929), (37, 5402751), (107, 1868241), (111, 1800917), (321, 622747), (3959, 50493), (11877, 16831)]