21340384

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1193}}^1$

素因数の和:1259

約数の個数: 48

約数和(自身を含む): 46336752

約数和(自身を除く): 24996368

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 86, 104, 172, 208, 344, 416, 559, 688, 1118, 1193, 1376, 2236, 2386, 4472, 4772, 8944, 9544, 15509, 17888, 19088, 31018, 38176, 51299, 62036, 102598, 124072, 205196, 248144, 410392, 496288, 666887, 820784, 1333774, 1641568, 2667548, 5335096, 10670192, 21340384]

約数ペア:

[(1, 21340384), (2, 10670192), (4, 5335096), (8, 2667548), (13, 1641568), (16, 1333774), (26, 820784), (32, 666887), (43, 496288), (52, 410392), (86, 248144), (104, 205196), (172, 124072), (208, 102598), (344, 62036), (416, 51299), (559, 38176), (688, 31018), (1118, 19088), (1193, 17888), (1376, 15509), (2236, 9544), (2386, 8944), (4472, 4772)]