253091811

素因数分解:

$3^1\times 7^4\times {\mathrm{41}}^1\times {\mathrm{857}}^1$

素因数の和:929

約数の個数: 40

約数和(自身を含む): 403747344

約数和(自身を除く): 150655533

約数列:

[1, 3, 7, 21, 41, 49, 123, 147, 287, 343, 857, 861, 1029, 2009, 2401, 2571, 5999, 6027, 7203, 14063, 17997, 35137, 41993, 42189, 98441, 105411, 125979, 245959, 293951, 295323, 737877, 881853, 1721713, 2057657, 5165139, 6172971, 12051991, 36155973, 84363937, 253091811]

約数ペア:

[(1, 253091811), (3, 84363937), (7, 36155973), (21, 12051991), (41, 6172971), (49, 5165139), (123, 2057657), (147, 1721713), (287, 881853), (343, 737877), (857, 295323), (861, 293951), (1029, 245959), (2009, 125979), (2401, 105411), (2571, 98441), (5999, 42189), (6027, 41993), (7203, 35137), (14063, 17997)]