19852209

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1109}}^1$

素因数の和:1151

約数の個数: 40

約数和(自身を含む): 33846120

約数和(自身を除く): 13993911

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 81, 117, 153, 221, 351, 459, 663, 1053, 1109, 1377, 1989, 3327, 5967, 9981, 14417, 17901, 18853, 29943, 43251, 56559, 89829, 129753, 169677, 245089, 389259, 509031, 735267, 1167777, 1527093, 2205801, 6617403, 19852209]

約数ペア:

[(1, 19852209), (3, 6617403), (9, 2205801), (13, 1527093), (17, 1167777), (27, 735267), (39, 509031), (51, 389259), (81, 245089), (117, 169677), (153, 129753), (221, 89829), (351, 56559), (459, 43251), (663, 29943), (1053, 18853), (1109, 17901), (1377, 14417), (1989, 9981), (3327, 5967)]