51321039

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:260

約数の個数: 64

約数和(自身を含む): 90685440

約数和(自身を除く): 39364401

約数列:

[1, 3, 7, 11, 21, 29, 33, 47, 77, 87, 141, 163, 203, 231, 319, 329, 489, 517, 609, 957, 987, 1141, 1363, 1551, 1793, 2233, 3423, 3619, 4089, 4727, 5379, 6699, 7661, 9541, 10857, 12551, 14181, 14993, 22983, 28623, 33089, 37653, 44979, 51997, 53627, 84271, 99267, 104951, 155991, 160881, 222169, 252813, 314853, 363979, 589897, 666507, 1091937, 1555183, 1769691, 2443859, 4665549, 7331577, 17107013, 51321039]

約数ペア:

[(1, 51321039), (3, 17107013), (7, 7331577), (11, 4665549), (21, 2443859), (29, 1769691), (33, 1555183), (47, 1091937), (77, 666507), (87, 589897), (141, 363979), (163, 314853), (203, 252813), (231, 222169), (319, 160881), (329, 155991), (489, 104951), (517, 99267), (609, 84271), (957, 53627), (987, 51997), (1141, 44979), (1363, 37653), (1551, 33089), (1793, 28623), (2233, 22983), (3423, 14993), (3619, 14181), (4089, 12551), (4727, 10857), (5379, 9541), (6699, 7661)]