19869388

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2081}}^1$

素因数の和:2134

約数の個数: 48

約数和(自身を含む): 44771328

約数和(自身を除く): 24901940

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 62, 77, 124, 154, 217, 308, 341, 434, 682, 868, 1364, 2081, 2387, 4162, 4774, 8324, 9548, 14567, 22891, 29134, 45782, 58268, 64511, 91564, 129022, 160237, 258044, 320474, 451577, 640948, 709621, 903154, 1419242, 1806308, 2838484, 4967347, 9934694, 19869388]

約数ペア:

[(1, 19869388), (2, 9934694), (4, 4967347), (7, 2838484), (11, 1806308), (14, 1419242), (22, 903154), (28, 709621), (31, 640948), (44, 451577), (62, 320474), (77, 258044), (124, 160237), (154, 129022), (217, 91564), (308, 64511), (341, 58268), (434, 45782), (682, 29134), (868, 22891), (1364, 14567), (2081, 9548), (2387, 8324), (4162, 4774)]