21538496

素因数分解:

$2^6\times 7^1\times {\mathrm{131}}^1\times {\mathrm{367}}^1$

素因数の和:517

約数の個数: 56

約数和(自身を含む): 49353216

約数和(自身を除く): 27814720

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 131, 224, 262, 367, 448, 524, 734, 917, 1048, 1468, 1834, 2096, 2569, 2936, 3668, 4192, 5138, 5872, 7336, 8384, 10276, 11744, 14672, 20552, 23488, 29344, 41104, 48077, 58688, 82208, 96154, 164416, 192308, 336539, 384616, 673078, 769232, 1346156, 1538464, 2692312, 3076928, 5384624, 10769248, 21538496]

約数ペア:

[(1, 21538496), (2, 10769248), (4, 5384624), (7, 3076928), (8, 2692312), (14, 1538464), (16, 1346156), (28, 769232), (32, 673078), (56, 384616), (64, 336539), (112, 192308), (131, 164416), (224, 96154), (262, 82208), (367, 58688), (448, 48077), (524, 41104), (734, 29344), (917, 23488), (1048, 20552), (1468, 14672), (1834, 11744), (2096, 10276), (2569, 8384), (2936, 7336), (3668, 5872), (4192, 5138)]