19308471

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{661}}^1$

素因数の和:791

約数の個数: 32

約数和(自身を含む): 32030208

約数和(自身を除く): 12721737

約数列:

[1, 3, 7, 13, 21, 39, 91, 107, 273, 321, 661, 749, 1391, 1983, 2247, 4173, 4627, 8593, 9737, 13881, 25779, 29211, 60151, 70727, 180453, 212181, 495089, 919451, 1485267, 2758353, 6436157, 19308471]

約数ペア:

[(1, 19308471), (3, 6436157), (7, 2758353), (13, 1485267), (21, 919451), (39, 495089), (91, 212181), (107, 180453), (273, 70727), (321, 60151), (661, 29211), (749, 25779), (1391, 13881), (1983, 9737), (2247, 8593), (4173, 4627)]