21325370

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{8429}}^1$

素因数の和:8470

約数の個数: 32

約数和(自身を含む): 43701120

約数和(自身を除く): 22375750

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265, 2530, 8429, 16858, 42145, 84290, 92719, 185438, 193867, 387734, 463595, 927190, 969335, 1938670, 2132537, 4265074, 10662685, 21325370]

約数ペア:

[(1, 21325370), (2, 10662685), (5, 4265074), (10, 2132537), (11, 1938670), (22, 969335), (23, 927190), (46, 463595), (55, 387734), (110, 193867), (115, 185438), (230, 92719), (253, 84290), (506, 42145), (1265, 16858), (2530, 8429)]