28136061

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 45302400

約数和(自身を除く): 17166339

約数列:

[1, 3, 9, 23, 29, 43, 69, 87, 109, 129, 207, 261, 327, 387, 667, 981, 989, 1247, 2001, 2507, 2967, 3161, 3741, 4687, 6003, 7521, 8901, 9483, 11223, 14061, 22563, 28449, 28681, 42183, 72703, 86043, 107801, 135923, 218109, 258129, 323403, 407769, 654327, 970209, 1223307, 3126229, 9378687, 28136061]

約数ペア:

[(1, 28136061), (3, 9378687), (9, 3126229), (23, 1223307), (29, 970209), (43, 654327), (69, 407769), (87, 323403), (109, 258129), (129, 218109), (207, 135923), (261, 107801), (327, 86043), (387, 72703), (667, 42183), (981, 28681), (989, 28449), (1247, 22563), (2001, 14061), (2507, 11223), (2967, 9483), (3161, 8901), (3741, 7521), (4687, 6003)]