19449639

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{263}}^1$

素因数の和:369

約数の個数: 40

約数和(自身を含む): 32199552

約数和(自身を除く): 12749913

約数列:

[1, 3, 9, 11, 27, 33, 81, 83, 99, 249, 263, 297, 747, 789, 891, 913, 2241, 2367, 2739, 2893, 6723, 7101, 8217, 8679, 21303, 21829, 24651, 26037, 65487, 73953, 78111, 196461, 234333, 240119, 589383, 720357, 1768149, 2161071, 6483213, 19449639]

約数ペア:

[(1, 19449639), (3, 6483213), (9, 2161071), (11, 1768149), (27, 720357), (33, 589383), (81, 240119), (83, 234333), (99, 196461), (249, 78111), (263, 73953), (297, 65487), (747, 26037), (789, 24651), (891, 21829), (913, 21303), (2241, 8679), (2367, 8217), (2739, 7101), (2893, 6723)]