20215664

素因数分解:

$2^4\times 7^1\times {\mathrm{180497}}^1$

素因数の和:180512

約数の個数: 20

約数和(自身を含む): 44763504

約数和(自身を除く): 24547840

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 180497, 360994, 721988, 1263479, 1443976, 2526958, 2887952, 5053916, 10107832, 20215664]

約数ペア:

[(1, 20215664), (2, 10107832), (4, 5053916), (7, 2887952), (8, 2526958), (14, 1443976), (16, 1263479), (28, 721988), (56, 360994), (112, 180497)]