20514784

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{877}}^1$

素因数の和:947

約数の個数: 48

約数和(自身を含む): 43808688

約数和(自身を除く): 23293904

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 43, 68, 86, 136, 172, 272, 344, 544, 688, 731, 877, 1376, 1462, 1754, 2924, 3508, 5848, 7016, 11696, 14032, 14909, 23392, 28064, 29818, 37711, 59636, 75422, 119272, 150844, 238544, 301688, 477088, 603376, 641087, 1206752, 1282174, 2564348, 5128696, 10257392, 20514784]

約数ペア:

[(1, 20514784), (2, 10257392), (4, 5128696), (8, 2564348), (16, 1282174), (17, 1206752), (32, 641087), (34, 603376), (43, 477088), (68, 301688), (86, 238544), (136, 150844), (172, 119272), (272, 75422), (344, 59636), (544, 37711), (688, 29818), (731, 28064), (877, 23392), (1376, 14909), (1462, 14032), (1754, 11696), (2924, 7016), (3508, 5848)]