28697985

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{14831}}^1$

素因数の和:14885

約数の個数: 24

約数和(自身を含む): 50903424

約数和(自身を除く): 22205439

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 14831, 44493, 74155, 133479, 222465, 637733, 667395, 1913199, 3188665, 5739597, 9565995, 28697985]

約数ペア:

[(1, 28697985), (3, 9565995), (5, 5739597), (9, 3188665), (15, 1913199), (43, 667395), (45, 637733), (129, 222465), (215, 133479), (387, 74155), (645, 44493), (1935, 14831)]