16807815

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 31269888

約数和(自身を除く): 14462073

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 127, 153, 173, 255, 381, 519, 635, 765, 865, 1143, 1557, 1905, 2159, 2595, 2941, 5715, 6477, 7785, 8823, 10795, 14705, 19431, 21971, 26469, 32385, 44115, 65913, 97155, 109855, 132345, 197739, 329565, 373507, 988695, 1120521, 1867535, 3361563, 5602605, 16807815]

約数ペア:

[(1, 16807815), (3, 5602605), (5, 3361563), (9, 1867535), (15, 1120521), (17, 988695), (45, 373507), (51, 329565), (85, 197739), (127, 132345), (153, 109855), (173, 97155), (255, 65913), (381, 44115), (519, 32385), (635, 26469), (765, 21971), (865, 19431), (1143, 14705), (1557, 10795), (1905, 8823), (2159, 7785), (2595, 6477), (2941, 5715)]