19955607

素因数分解:

$3^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{107}}^2$

素因数の和:307

約数の個数: 24

約数和(自身を含む): 31065216

約数和(自身を除く): 11109609

約数列:

[1, 3, 7, 21, 83, 107, 249, 321, 581, 749, 1743, 2247, 8881, 11449, 26643, 34347, 62167, 80143, 186501, 240429, 950267, 2850801, 6651869, 19955607]

約数ペア:

[(1, 19955607), (3, 6651869), (7, 2850801), (21, 950267), (83, 240429), (107, 186501), (249, 80143), (321, 62167), (581, 34347), (749, 26643), (1743, 11449), (2247, 8881)]