20792564

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{547}}^1$

素因数の和:624

約数の個数: 48

約数和(自身を含む): 42533568

約数和(自身を除く): 21741004

約数列:

[1, 2, 4, 13, 17, 26, 34, 43, 52, 68, 86, 172, 221, 442, 547, 559, 731, 884, 1094, 1118, 1462, 2188, 2236, 2924, 7111, 9299, 9503, 14222, 18598, 19006, 23521, 28444, 37196, 38012, 47042, 94084, 120887, 241774, 305773, 399857, 483548, 611546, 799714, 1223092, 1599428, 5198141, 10396282, 20792564]

約数ペア:

[(1, 20792564), (2, 10396282), (4, 5198141), (13, 1599428), (17, 1223092), (26, 799714), (34, 611546), (43, 483548), (52, 399857), (68, 305773), (86, 241774), (172, 120887), (221, 94084), (442, 47042), (547, 38012), (559, 37196), (731, 28444), (884, 23521), (1094, 19006), (1118, 18598), (1462, 14222), (2188, 9503), (2236, 9299), (2924, 7111)]