18688592

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{89849}}^1$

素因数の和:89870

約数の個数: 20

約数和(自身を含む): 38994900

約数和(自身を除く): 20306308

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 89849, 179698, 359396, 718792, 1168037, 1437584, 2336074, 4672148, 9344296, 18688592]

約数ペア:

[(1, 18688592), (2, 9344296), (4, 4672148), (8, 2336074), (13, 1437584), (16, 1168037), (26, 718792), (52, 359396), (104, 179698), (208, 89849)]