257907189

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{173}}^1$

素因数の和:429

約数の個数: 32

約数和(自身を含む): 360138240

約数和(自身を除く): 102231051

約数列:

[1, 3, 47, 97, 109, 141, 173, 291, 327, 519, 4559, 5123, 8131, 10573, 13677, 15369, 16781, 18857, 24393, 31719, 50343, 56571, 496931, 788707, 886279, 1490793, 1829129, 2366121, 2658837, 5487387, 85969063, 257907189]

約数ペア:

[(1, 257907189), (3, 85969063), (47, 5487387), (97, 2658837), (109, 2366121), (141, 1829129), (173, 1490793), (291, 886279), (327, 788707), (519, 496931), (4559, 56571), (5123, 50343), (8131, 31719), (10573, 24393), (13677, 18857), (15369, 16781)]