18949905

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1117}}^1$

素因数の和:1170

約数の個数: 48

約数和(自身を含む): 36625680

約数和(自身を除く): 17675775

約数列:

[1, 3, 5, 9, 13, 15, 29, 39, 45, 65, 87, 117, 145, 195, 261, 377, 435, 585, 1117, 1131, 1305, 1885, 3351, 3393, 5585, 5655, 10053, 14521, 16755, 16965, 32393, 43563, 50265, 72605, 97179, 130689, 161965, 217815, 291537, 421109, 485895, 653445, 1263327, 1457685, 2105545, 3789981, 6316635, 18949905]

約数ペア:

[(1, 18949905), (3, 6316635), (5, 3789981), (9, 2105545), (13, 1457685), (15, 1263327), (29, 653445), (39, 485895), (45, 421109), (65, 291537), (87, 217815), (117, 161965), (145, 130689), (195, 97179), (261, 72605), (377, 50265), (435, 43563), (585, 32393), (1117, 16965), (1131, 16755), (1305, 14521), (1885, 10053), (3351, 5655), (3393, 5585)]