18639704

素因数分解:

$2^3\times {\mathrm{103}}^1\times {\mathrm{22621}}^1$

素因数の和:22730

約数の個数: 16

約数和(自身を含む): 35290320

約数和(自身を除く): 16650616

約数列:

[1, 2, 4, 8, 103, 206, 412, 824, 22621, 45242, 90484, 180968, 2329963, 4659926, 9319852, 18639704]

約数ペア:

[(1, 18639704), (2, 9319852), (4, 4659926), (8, 2329963), (103, 180968), (206, 90484), (412, 45242), (824, 22621)]