19921428

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^2\times {\mathrm{197}}^1$

素因数の和:313

約数の個数: 54

約数和(自身を含む): 51585534

約数和(自身を除く): 31664106

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 106, 159, 197, 212, 318, 394, 477, 591, 636, 788, 954, 1182, 1773, 1908, 2364, 2809, 3546, 5618, 7092, 8427, 10441, 11236, 16854, 20882, 25281, 31323, 33708, 41764, 50562, 62646, 93969, 101124, 125292, 187938, 375876, 553373, 1106746, 1660119, 2213492, 3320238, 4980357, 6640476, 9960714, 19921428]

約数ペア:

[(1, 19921428), (2, 9960714), (3, 6640476), (4, 4980357), (6, 3320238), (9, 2213492), (12, 1660119), (18, 1106746), (36, 553373), (53, 375876), (106, 187938), (159, 125292), (197, 101124), (212, 93969), (318, 62646), (394, 50562), (477, 41764), (591, 33708), (636, 31323), (788, 25281), (954, 20882), (1182, 16854), (1773, 11236), (1908, 10441), (2364, 8427), (2809, 7092), (3546, 5618)]