21131488

素因数分解:

$2^5\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3253}}^1$

素因数の和:3299

約数の個数: 48

約数和(自身を含む): 49200480

約数和(自身を除く): 28068992

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 32, 56, 58, 112, 116, 203, 224, 232, 406, 464, 812, 928, 1624, 3248, 3253, 6496, 6506, 13012, 22771, 26024, 45542, 52048, 91084, 94337, 104096, 182168, 188674, 364336, 377348, 660359, 728672, 754696, 1320718, 1509392, 2641436, 3018784, 5282872, 10565744, 21131488]

約数ペア:

[(1, 21131488), (2, 10565744), (4, 5282872), (7, 3018784), (8, 2641436), (14, 1509392), (16, 1320718), (28, 754696), (29, 728672), (32, 660359), (56, 377348), (58, 364336), (112, 188674), (116, 182168), (203, 104096), (224, 94337), (232, 91084), (406, 52048), (464, 45542), (812, 26024), (928, 22771), (1624, 13012), (3248, 6506), (3253, 6496)]