213922225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{877}}^1\times {\mathrm{887}}^1$

素因数の和:1785

約数の個数: 24

約数和(自身を含む): 290035008

約数和(自身を除く): 76112783

約数列:

[1, 5, 11, 25, 55, 275, 877, 887, 4385, 4435, 9647, 9757, 21925, 22175, 48235, 48785, 241175, 243925, 777899, 3889495, 8556889, 19447475, 42784445, 213922225]

約数ペア:

[(1, 213922225), (5, 42784445), (11, 19447475), (25, 8556889), (55, 3889495), (275, 777899), (877, 243925), (887, 241175), (4385, 48785), (4435, 48235), (9647, 22175), (9757, 21925)]