21321575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{3371}}^1$

素因数の和:3415

約数の個数: 24

約数和(自身を含む): 30105216

約数和(自身を除く): 8783641

約数列:

[1, 5, 11, 23, 25, 55, 115, 253, 275, 575, 1265, 3371, 6325, 16855, 37081, 77533, 84275, 185405, 387665, 852863, 927025, 1938325, 4264315, 21321575]

約数ペア:

[(1, 21321575), (5, 4264315), (11, 1938325), (23, 927025), (25, 852863), (55, 387665), (115, 185405), (253, 84275), (275, 77533), (575, 37081), (1265, 16855), (3371, 6325)]