19995955

素因数分解:

$5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{1637}}^1$

素因数の和:1998

約数の個数: 16

約数和(自身を含む): 27518400

約数和(自身を除く): 7522445

約数列:

[1, 5, 7, 35, 349, 1637, 1745, 2443, 8185, 11459, 12215, 57295, 571313, 2856565, 3999191, 19995955]

約数ペア:

[(1, 19995955), (5, 3999191), (7, 2856565), (35, 571313), (349, 57295), (1637, 12215), (1745, 11459), (2443, 8185)]