21216608

素因数分解:

$2^5\times 7^3\times {\mathrm{1933}}^1$

素因数の和:1964

約数の個数: 48

約数和(自身を含む): 48736800

約数和(自身を除く): 27520192

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 343, 392, 686, 784, 1372, 1568, 1933, 2744, 3866, 5488, 7732, 10976, 13531, 15464, 27062, 30928, 54124, 61856, 94717, 108248, 189434, 216496, 378868, 432992, 663019, 757736, 1326038, 1515472, 2652076, 3030944, 5304152, 10608304, 21216608]

約数ペア:

[(1, 21216608), (2, 10608304), (4, 5304152), (7, 3030944), (8, 2652076), (14, 1515472), (16, 1326038), (28, 757736), (32, 663019), (49, 432992), (56, 378868), (98, 216496), (112, 189434), (196, 108248), (224, 94717), (343, 61856), (392, 54124), (686, 30928), (784, 27062), (1372, 15464), (1568, 13531), (1933, 10976), (2744, 7732), (3866, 5488)]