18988228

素因数分解:

$2^2\times 7^1\times {\mathrm{359}}^1\times {\mathrm{1889}}^1$

素因数の和:2259

約数の個数: 24

約数和(自身を含む): 38102400

約数和(自身を除く): 19114172

約数列:

[1, 2, 4, 7, 14, 28, 359, 718, 1436, 1889, 2513, 3778, 5026, 7556, 10052, 13223, 26446, 52892, 678151, 1356302, 2712604, 4747057, 9494114, 18988228]

約数ペア:

[(1, 18988228), (2, 9494114), (4, 4747057), (7, 2712604), (14, 1356302), (28, 678151), (359, 52892), (718, 26446), (1436, 13223), (1889, 10052), (2513, 7556), (3778, 5026)]