19636552

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4391}}^1$

素因数の和:4453

約数の個数: 32

約数和(自身を含む): 40582080

約数和(自身を除く): 20945528

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4391, 4472, 8782, 17564, 35128, 57083, 114166, 188813, 228332, 377626, 456664, 755252, 1510504, 2454569, 4909138, 9818276, 19636552]

約数ペア:

[(1, 19636552), (2, 9818276), (4, 4909138), (8, 2454569), (13, 1510504), (26, 755252), (43, 456664), (52, 377626), (86, 228332), (104, 188813), (172, 114166), (344, 57083), (559, 35128), (1118, 17564), (2236, 8782), (4391, 4472)]