21365666

素因数分解:

$2^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{9479}}^1$

素因数の和:9518

約数の個数: 24

約数和(自身を含む): 38905920

約数和(自身を除く): 17540254

約数列:

[1, 2, 7, 14, 23, 46, 49, 98, 161, 322, 1127, 2254, 9479, 18958, 66353, 132706, 218017, 436034, 464471, 928942, 1526119, 3052238, 10682833, 21365666]

約数ペア:

[(1, 21365666), (2, 10682833), (7, 3052238), (14, 1526119), (23, 928942), (46, 464471), (49, 436034), (98, 218017), (161, 132706), (322, 66353), (1127, 18958), (2254, 9479)]