260021979

素因数分解:

$3^2\times 7^2\times {\mathrm{461}}^1\times {\mathrm{1279}}^1$

素因数の和:1760

約数の個数: 36

約数和(自身を含む): 438197760

約数和(自身を除く): 178175781

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 461, 1279, 1383, 3227, 3837, 4149, 8953, 9681, 11511, 22589, 26859, 29043, 62671, 67767, 80577, 188013, 203301, 564039, 589619, 1768857, 4127333, 5306571, 12381999, 28891331, 37145997, 86673993, 260021979]

約数ペア:

[(1, 260021979), (3, 86673993), (7, 37145997), (9, 28891331), (21, 12381999), (49, 5306571), (63, 4127333), (147, 1768857), (441, 589619), (461, 564039), (1279, 203301), (1383, 188013), (3227, 80577), (3837, 67767), (4149, 62671), (8953, 29043), (9681, 26859), (11511, 22589)]