21327824

素因数分解:

$2^4\times 7^1\times {\mathrm{191}}^1\times {\mathrm{997}}^1$

素因数の和:1203

約数の個数: 40

約数和(自身を含む): 47520768

約数和(自身を除く): 26192944

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 191, 382, 764, 997, 1337, 1528, 1994, 2674, 3056, 3988, 5348, 6979, 7976, 10696, 13958, 15952, 21392, 27916, 55832, 111664, 190427, 380854, 761708, 1332989, 1523416, 2665978, 3046832, 5331956, 10663912, 21327824]

約数ペア:

[(1, 21327824), (2, 10663912), (4, 5331956), (7, 3046832), (8, 2665978), (14, 1523416), (16, 1332989), (28, 761708), (56, 380854), (112, 190427), (191, 111664), (382, 55832), (764, 27916), (997, 21392), (1337, 15952), (1528, 13958), (1994, 10696), (2674, 7976), (3056, 6979), (3988, 5348)]