256268523

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37781}}^1$

素因数の和:37827

約数の個数: 32

約数和(自身を含む): 435248640

約数和(自身を除く): 178980117

約数列:

[1, 3, 7, 17, 19, 21, 51, 57, 119, 133, 323, 357, 399, 969, 2261, 6783, 37781, 113343, 264467, 642277, 717839, 793401, 1926831, 2153517, 4495939, 5024873, 12203263, 13487817, 15074619, 36609789, 85422841, 256268523]

約数ペア:

[(1, 256268523), (3, 85422841), (7, 36609789), (17, 15074619), (19, 13487817), (21, 12203263), (51, 5024873), (57, 4495939), (119, 2153517), (133, 1926831), (323, 793401), (357, 717839), (399, 642277), (969, 264467), (2261, 113343), (6783, 37781)]