7907571

素因数分解:

$3^3\times 7^2\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:205

約数の個数: 48

約数和(自身を含む): 14044800

約数和(自身を除く): 6137229

約数列:

[1, 3, 7, 9, 21, 27, 43, 49, 63, 129, 139, 147, 189, 301, 387, 417, 441, 903, 973, 1161, 1251, 1323, 2107, 2709, 2919, 3753, 5977, 6321, 6811, 8127, 8757, 17931, 18963, 20433, 26271, 41839, 53793, 56889, 61299, 125517, 161379, 183897, 292873, 376551, 878619, 1129653, 2635857, 7907571]

約数ペア:

[(1, 7907571), (3, 2635857), (7, 1129653), (9, 878619), (21, 376551), (27, 292873), (43, 183897), (49, 161379), (63, 125517), (129, 61299), (139, 56889), (147, 53793), (189, 41839), (301, 26271), (387, 20433), (417, 18963), (441, 17931), (903, 8757), (973, 8127), (1161, 6811), (1251, 6321), (1323, 5977), (2107, 3753), (2709, 2919)]