20318895

素因数分解:

$3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{2269}}^1$

素因数の和:2479

約数の個数: 24

約数和(自身を含む): 35412000

約数和(自身を除く): 15093105

約数列:

[1, 3, 5, 9, 15, 45, 199, 597, 995, 1791, 2269, 2985, 6807, 8955, 11345, 20421, 34035, 102105, 451531, 1354593, 2257655, 4063779, 6772965, 20318895]

約数ペア:

[(1, 20318895), (3, 6772965), (5, 4063779), (9, 2257655), (15, 1354593), (45, 451531), (199, 102105), (597, 34035), (995, 20421), (1791, 11345), (2269, 8955), (2985, 6807)]