21046900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{281}}^1$

素因数の和:409

約数の個数: 72

約数和(自身を含む): 52871616

約数和(自身を除く): 31824716

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 107, 140, 175, 214, 281, 350, 428, 535, 562, 700, 749, 1070, 1124, 1405, 1498, 1967, 2140, 2675, 2810, 2996, 3745, 3934, 5350, 5620, 7025, 7490, 7868, 9835, 10700, 14050, 14980, 18725, 19670, 28100, 30067, 37450, 39340, 49175, 60134, 74900, 98350, 120268, 150335, 196700, 210469, 300670, 420938, 601340, 751675, 841876, 1052345, 1503350, 2104690, 3006700, 4209380, 5261725, 10523450, 21046900]

約数ペア:

[(1, 21046900), (2, 10523450), (4, 5261725), (5, 4209380), (7, 3006700), (10, 2104690), (14, 1503350), (20, 1052345), (25, 841876), (28, 751675), (35, 601340), (50, 420938), (70, 300670), (100, 210469), (107, 196700), (140, 150335), (175, 120268), (214, 98350), (281, 74900), (350, 60134), (428, 49175), (535, 39340), (562, 37450), (700, 30067), (749, 28100), (1070, 19670), (1124, 18725), (1405, 14980), (1498, 14050), (1967, 10700), (2140, 9835), (2675, 7868), (2810, 7490), (2996, 7025), (3745, 5620), (3934, 5350)]