19855143

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{4093}}^1$

素因数の和:4124

約数の個数: 36

約数和(自身を含む): 36403848

約数和(自身を除く): 16548705

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 99, 147, 231, 441, 539, 693, 1617, 4093, 4851, 12279, 28651, 36837, 45023, 85953, 135069, 200557, 257859, 315161, 405207, 601671, 945483, 1805013, 2206127, 2836449, 6618381, 19855143]

約数ペア:

[(1, 19855143), (3, 6618381), (7, 2836449), (9, 2206127), (11, 1805013), (21, 945483), (33, 601671), (49, 405207), (63, 315161), (77, 257859), (99, 200557), (147, 135069), (231, 85953), (441, 45023), (539, 36837), (693, 28651), (1617, 12279), (4093, 4851)]