21253352

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1993}}^1$

素因数の和:2073

約数の個数: 32

約数和(自身を含む): 42113280

約数和(自身を除く): 20859928

約数列:

[1, 2, 4, 8, 31, 43, 62, 86, 124, 172, 248, 344, 1333, 1993, 2666, 3986, 5332, 7972, 10664, 15944, 61783, 85699, 123566, 171398, 247132, 342796, 494264, 685592, 2656669, 5313338, 10626676, 21253352]

約数ペア:

[(1, 21253352), (2, 10626676), (4, 5313338), (8, 2656669), (31, 685592), (43, 494264), (62, 342796), (86, 247132), (124, 171398), (172, 123566), (248, 85699), (344, 61783), (1333, 15944), (1993, 10664), (2666, 7972), (3986, 5332)]