21223768

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{599}}^1$

素因数の和:751

約数の個数: 32

約数和(自身を含む): 41184000

約数和(自身を除く): 19960232

約数列:

[1, 2, 4, 8, 43, 86, 103, 172, 206, 344, 412, 599, 824, 1198, 2396, 4429, 4792, 8858, 17716, 25757, 35432, 51514, 61697, 103028, 123394, 206056, 246788, 493576, 2652971, 5305942, 10611884, 21223768]

約数ペア:

[(1, 21223768), (2, 10611884), (4, 5305942), (8, 2652971), (43, 493576), (86, 246788), (103, 206056), (172, 123394), (206, 103028), (344, 61697), (412, 51514), (599, 35432), (824, 25757), (1198, 17716), (2396, 8858), (4429, 4792)]