21364378

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1543}}^1$

素因数の和:1618

約数の個数: 32

約数和(自身を含む): 39131136

約数和(自身を除く): 17766758

約数列:

[1, 2, 7, 14, 23, 43, 46, 86, 161, 301, 322, 602, 989, 1543, 1978, 3086, 6923, 10801, 13846, 21602, 35489, 66349, 70978, 132698, 248423, 464443, 496846, 928886, 1526027, 3052054, 10682189, 21364378]

約数ペア:

[(1, 21364378), (2, 10682189), (7, 3052054), (14, 1526027), (23, 928886), (43, 496846), (46, 464443), (86, 248423), (161, 132698), (301, 70978), (322, 66349), (602, 35489), (989, 21602), (1543, 13846), (1978, 10801), (3086, 6923)]