18078386

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{1223}}^1$

素因数の和:1633

約数の個数: 16

約数和(自身を含む): 28641600

約数和(自身を除く): 10563214

約数列:

[1, 2, 19, 38, 389, 778, 1223, 2446, 7391, 14782, 23237, 46474, 475747, 951494, 9039193, 18078386]

約数ペア:

[(1, 18078386), (2, 9039193), (19, 951494), (38, 475747), (389, 46474), (778, 23237), (1223, 14782), (2446, 7391)]