18431938

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^2\times {\mathrm{521}}^1$

素因数の和:575

約数の個数: 36

約数和(自身を含む): 34008822

約数和(自身を除く): 15576884

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 266, 361, 521, 722, 931, 1042, 1862, 2527, 3647, 5054, 7294, 9899, 17689, 19798, 25529, 35378, 51058, 69293, 138586, 188081, 376162, 485051, 970102, 1316567, 2633134, 9215969, 18431938]

約数ペア:

[(1, 18431938), (2, 9215969), (7, 2633134), (14, 1316567), (19, 970102), (38, 485051), (49, 376162), (98, 188081), (133, 138586), (266, 69293), (361, 51058), (521, 35378), (722, 25529), (931, 19798), (1042, 17689), (1862, 9899), (2527, 7294), (3647, 5054)]