20889416

素因数分解:

$2^3\times {\mathrm{1093}}^1\times {\mathrm{2389}}^1$

素因数の和:3488

約数の個数: 16

約数和(自身を含む): 39219900

約数和(自身を除く): 18330484

約数列:

[1, 2, 4, 8, 1093, 2186, 2389, 4372, 4778, 8744, 9556, 19112, 2611177, 5222354, 10444708, 20889416]

約数ペア:

[(1, 20889416), (2, 10444708), (4, 5222354), (8, 2611177), (1093, 19112), (2186, 9556), (2389, 8744), (4372, 4778)]