258129

素因数分解:

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

素因数の和:101

約数の個数: 24

約数和(自身を含む): 411840

約数和(自身を除く): 153711

約数列:

[1, 3, 9, 23, 29, 43, 69, 87, 129, 207, 261, 387, 667, 989, 1247, 2001, 2967, 3741, 6003, 8901, 11223, 28681, 86043, 258129]

約数ペア:

[(1, 258129), (3, 86043), (9, 28681), (23, 11223), (29, 8901), (43, 6003), (69, 3741), (87, 2967), (129, 2001), (207, 1247), (261, 989), (387, 667)]