28688163

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{163}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 48334080

約数和(自身を除く): 19645917

約数列:

[1, 3, 7, 17, 21, 29, 51, 87, 119, 163, 203, 289, 357, 489, 493, 609, 867, 1141, 1479, 2023, 2771, 3423, 3451, 4727, 6069, 8313, 8381, 10353, 14181, 19397, 25143, 33089, 47107, 58191, 58667, 80359, 99267, 141321, 176001, 241077, 329749, 562513, 989247, 1366103, 1687539, 4098309, 9562721, 28688163]

約数ペア:

[(1, 28688163), (3, 9562721), (7, 4098309), (17, 1687539), (21, 1366103), (29, 989247), (51, 562513), (87, 329749), (119, 241077), (163, 176001), (203, 141321), (289, 99267), (357, 80359), (489, 58667), (493, 58191), (609, 47107), (867, 33089), (1141, 25143), (1479, 19397), (2023, 14181), (2771, 10353), (3423, 8381), (3451, 8313), (4727, 6069)]