20736664

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4637}}^1$

素因数の和:4699

約数の個数: 32

約数和(自身を含む): 42855120

約数和(自身を除く): 22118456

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4472, 4637, 9274, 18548, 37096, 60281, 120562, 199391, 241124, 398782, 482248, 797564, 1595128, 2592083, 5184166, 10368332, 20736664]

約数ペア:

[(1, 20736664), (2, 10368332), (4, 5184166), (8, 2592083), (13, 1595128), (26, 797564), (43, 482248), (52, 398782), (86, 241124), (104, 199391), (172, 120562), (344, 60281), (559, 37096), (1118, 18548), (2236, 9274), (4472, 4637)]