19994085

素因数分解:

$3^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{691}}^1$

素因数の和:1345

約数の個数: 24

約数和(自身を含む): 34760544

約数和(自身を除く): 14766459

約数列:

[1, 3, 5, 9, 15, 45, 643, 691, 1929, 2073, 3215, 3455, 5787, 6219, 9645, 10365, 28935, 31095, 444313, 1332939, 2221565, 3998817, 6664695, 19994085]

約数ペア:

[(1, 19994085), (3, 6664695), (5, 3998817), (9, 2221565), (15, 1332939), (45, 444313), (643, 31095), (691, 28935), (1929, 10365), (2073, 9645), (3215, 6219), (3455, 5787)]