20722388

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{373}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 41469120

約数和(自身を除く): 20746732

約数列:

[1, 2, 4, 17, 19, 34, 38, 43, 68, 76, 86, 172, 323, 373, 646, 731, 746, 817, 1292, 1462, 1492, 1634, 2924, 3268, 6341, 7087, 12682, 13889, 14174, 16039, 25364, 27778, 28348, 32078, 55556, 64156, 120479, 240958, 272663, 304741, 481916, 545326, 609482, 1090652, 1218964, 5180597, 10361194, 20722388]

約数ペア:

[(1, 20722388), (2, 10361194), (4, 5180597), (17, 1218964), (19, 1090652), (34, 609482), (38, 545326), (43, 481916), (68, 304741), (76, 272663), (86, 240958), (172, 120479), (323, 64156), (373, 55556), (646, 32078), (731, 28348), (746, 27778), (817, 25364), (1292, 16039), (1462, 14174), (1492, 13889), (1634, 12682), (2924, 7087), (3268, 6341)]