21961996

素因数分解:

$2^2\times 7^2\times {\mathrm{89}}^1\times {\mathrm{1259}}^1$

素因数の和:1366

約数の個数: 36

約数和(自身を含む): 45246600

約数和(自身を除く): 23284604

約数列:

[1, 2, 4, 7, 14, 28, 49, 89, 98, 178, 196, 356, 623, 1246, 1259, 2492, 2518, 4361, 5036, 8722, 8813, 17444, 17626, 35252, 61691, 112051, 123382, 224102, 246764, 448204, 784357, 1568714, 3137428, 5490499, 10980998, 21961996]

約数ペア:

[(1, 21961996), (2, 10980998), (4, 5490499), (7, 3137428), (14, 1568714), (28, 784357), (49, 448204), (89, 246764), (98, 224102), (178, 123382), (196, 112051), (356, 61691), (623, 35252), (1246, 17626), (1259, 17444), (2492, 8813), (2518, 8722), (4361, 5036)]