21079135

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{54751}}^1$

素因数の和:54774

約数の個数: 16

約数和(自身を含む): 31537152

約数和(自身を除く): 10458017

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 54751, 273755, 383257, 602261, 1916285, 3011305, 4215827, 21079135]

約数ペア:

[(1, 21079135), (5, 4215827), (7, 3011305), (11, 1916285), (35, 602261), (55, 383257), (77, 273755), (385, 54751)]