261775563

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{2663}}^1$

素因数の和:2855

約数の個数: 32

約数和(自身を含む): 414646272

約数和(自身を除く): 152870709

約数列:

[1, 3, 7, 21, 31, 93, 151, 217, 453, 651, 1057, 2663, 3171, 4681, 7989, 14043, 18641, 32767, 55923, 82553, 98301, 247659, 402113, 577871, 1206339, 1733613, 2814791, 8444373, 12465503, 37396509, 87258521, 261775563]

約数ペア:

[(1, 261775563), (3, 87258521), (7, 37396509), (21, 12465503), (31, 8444373), (93, 2814791), (151, 1733613), (217, 1206339), (453, 577871), (651, 402113), (1057, 247659), (2663, 98301), (3171, 82553), (4681, 55923), (7989, 32767), (14043, 18641)]