18378087

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{163}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 31409280

約数和(自身を除く): 13031193

約数列:

[1, 3, 7, 13, 21, 39, 49, 59, 91, 147, 163, 177, 273, 413, 489, 637, 767, 1141, 1239, 1911, 2119, 2301, 2891, 3423, 5369, 6357, 7987, 8673, 9617, 14833, 16107, 23961, 28851, 37583, 44499, 67319, 103831, 112749, 125021, 201957, 311493, 375063, 471233, 875147, 1413699, 2625441, 6126029, 18378087]

約数ペア:

[(1, 18378087), (3, 6126029), (7, 2625441), (13, 1413699), (21, 875147), (39, 471233), (49, 375063), (59, 311493), (91, 201957), (147, 125021), (163, 112749), (177, 103831), (273, 67319), (413, 44499), (489, 37583), (637, 28851), (767, 23961), (1141, 16107), (1239, 14833), (1911, 9617), (2119, 8673), (2301, 7987), (2891, 6357), (3423, 5369)]