18689744

素因数分解:

$2^4\times {\mathrm{277}}^1\times {\mathrm{4217}}^1$

素因数の和:4502

約数の個数: 20

約数和(自身を含む): 36350724

約数和(自身を除く): 17660980

約数列:

[1, 2, 4, 8, 16, 277, 554, 1108, 2216, 4217, 4432, 8434, 16868, 33736, 67472, 1168109, 2336218, 4672436, 9344872, 18689744]

約数ペア:

[(1, 18689744), (2, 9344872), (4, 4672436), (8, 2336218), (16, 1168109), (277, 67472), (554, 33736), (1108, 16868), (2216, 8434), (4217, 4432)]