19952109

素因数分解:

$3^3\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:159

約数の個数: 48

約数和(自身を含む): 32918400

約数和(自身を除く): 12966291

約数列:

[1, 3, 9, 19, 23, 27, 57, 69, 89, 171, 207, 267, 361, 437, 513, 621, 801, 1083, 1311, 1691, 2047, 2403, 3249, 3933, 5073, 6141, 8303, 9747, 11799, 15219, 18423, 24909, 32129, 38893, 45657, 55269, 74727, 96387, 116679, 224181, 289161, 350037, 738967, 867483, 1050111, 2216901, 6650703, 19952109]

約数ペア:

[(1, 19952109), (3, 6650703), (9, 2216901), (19, 1050111), (23, 867483), (27, 738967), (57, 350037), (69, 289161), (89, 224181), (171, 116679), (207, 96387), (267, 74727), (361, 55269), (437, 45657), (513, 38893), (621, 32129), (801, 24909), (1083, 18423), (1311, 15219), (1691, 11799), (2047, 9747), (2403, 8303), (3249, 6141), (3933, 5073)]