19201755

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{293}}^1$

素因数の和:575

約数の個数: 32

約数和(自身を含む): 32768064

約数和(自身を除く): 13566309

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 257, 293, 771, 879, 1285, 1465, 3855, 4369, 4395, 4981, 13107, 14943, 21845, 24905, 65535, 74715, 75301, 225903, 376505, 1129515, 1280117, 3840351, 6400585, 19201755]

約数ペア:

[(1, 19201755), (3, 6400585), (5, 3840351), (15, 1280117), (17, 1129515), (51, 376505), (85, 225903), (255, 75301), (257, 74715), (293, 65535), (771, 24905), (879, 21845), (1285, 14943), (1465, 13107), (3855, 4981), (4369, 4395)]