21921850

素因数分解:

$2^1\times 5^2\times {\mathrm{337}}^1\times {\mathrm{1301}}^1$

素因数の和:1650

約数の個数: 24

約数和(自身を含む): 40927068

約数和(自身を除く): 19005218

約数列:

[1, 2, 5, 10, 25, 50, 337, 674, 1301, 1685, 2602, 3370, 6505, 8425, 13010, 16850, 32525, 65050, 438437, 876874, 2192185, 4384370, 10960925, 21921850]

約数ペア:

[(1, 21921850), (2, 10960925), (5, 4384370), (10, 2192185), (25, 876874), (50, 438437), (337, 65050), (674, 32525), (1301, 16850), (1685, 13010), (2602, 8425), (3370, 6505)]