18916521

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{8221}}^1$

素因数の和:8296

約数の個数: 16

約数和(自身を含む): 27625920

約数和(自身を除く): 8709399

約数列:

[1, 3, 13, 39, 59, 177, 767, 2301, 8221, 24663, 106873, 320619, 485039, 1455117, 6305507, 18916521]

約数ペア:

[(1, 18916521), (3, 6305507), (13, 1455117), (39, 485039), (59, 320619), (177, 106873), (767, 24663), (2301, 8221)]